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单选题A group of hikers is planning a trip that will take them up a mountain using one route and back down using another route. They plan to travel down the mountain at a rate of one and a half times the rate they will use on the way up, but the time each ro

题目
单选题
A group of hikers is planning a trip that will take them up a mountain using one route and back down using another route. They plan to travel down the mountain at a rate of one and a half times the rate they will use on the way up, but the time each route will take is the same. If they will go up the mountain at a rate of 4 miles per day and it will take them two days, how many miles long is the route down the mountain?
A

4

B

6

C

8

D

12

E

16

相似考题

1.Find the word in the passage which means “ the movement from one place to another of a large group of animals” and write it down here: __________.

2.A Contract of Affreightment covering the movement of a particular cargo from one designated port to another at a specified rate for each ton of goods loaded is called a ______.A.bareboat charter partyB.demise charter partyC.time charter partyD.voyage charter party

3.When a reader tries to guess the meaning of a new word based on the contextual clue,which one of the following approaches is he using?A.Bottom-up approach． B.Top-down approach． C.Interactive approach． D.Situational approach．

4.For some years after his graduation, he ______ some of his classmates, but as times went by, he dropped them one by one.A、catch up withB、keep up withC、keep upD、make up with

参考答案和解析
正确答案： B
解析：
下山的速度=1.5×4=6，所以下山的路程=6×2=12miles，故本题选D项。
更多“单选题A group of hikers is planning a trip that will take them up a mountain using one route and back down using another route. They plan to travel down the mountain at a rate of one and a half times the rate they will use on the way up, but the time each ro”相关问题

  • 第1题：

    During planning you sit down and estimate the time needed for each task and total them to come up with the project estimate.This duration is what you commit to complete the project.What is wrong with the scenario?

    A.The team did not create the estimate and estimating tales too long using that method
    B.The team did not create the estimate and a network diagram was not used
    C.The estimate is too long and should be created by management
    D.The project estimate should be the same as the customer's required completion date

    答案：B
    解析：
    解析：当你打算坐下来评估每个任务所需的时间和总共的项目评估。在你提交完成项目估算的这个期间。依据以上场景错误的选项是（ ）?
    团队使用这种方法并没有产生太长时间的估计和估计故事。
    团队不需要创建估算，不需要用到网络图。
    估计太长了，应该由管理人员来制定。
    项目估算应与客户要求的完工日期相同。

  • 第2题：

    共用题干
    A Ride in a Cable-car
    A ride in a cable-car is one of the exciting and enjoyable experiences a child can have.In
    Switzerland,which is the home of the cable-car,it is used mostly to take tourists up the slope of a mountain,to a restaurant from which one can have a bird-eye view of the surrounding country, or to a top of a ski-run,from which,in winter,skiers glide down the snow covered the slope on skis .In Singapore,however,the cable-car takes one from the summit of a hill on the main island to a low hill on Sentosa,a resort island just off the southern coast.
    The cable-car is really a carriage which hangs from a strong steel cable suspended in the air.
    It moves along the cable with other cars on pulleys,the wheels of which are turned by electric motors. The cars are painted in eye-catching colours and spaced at regular intervals.Each car can seat up six persons.After the passengers have entered a car,they are locked in from outside by an attendant,they have no control over the movement of the car.
    Before long,the passengers get a breath-taking view through the glass windows of the modern city,the bustling harbour,and the several islands off the coast. The car is suspended so high in the air that slips on the sea look like small boats,and boats like toys.On a clear day,both the sky above and the sea below look beautifully blue.
    In contrast to the fast-moving traffic on the ground,the cars in the air move in a leisurely manner,allowing passengers more than enough time to take in the scenery during the brief trip to the island of Sentosa.After a few hours on Sentosa,it will be time again to take a cable-car back to Mount Faber. The return journey is no less exciting than the outward trip.

    The last sentence of the passage"The return journey is no less exciting than the outward trip",means______.
    A: "The return trip is less boring than the outward ones."
    B: "The return trip is more enjoyable than the outward ones."
    C: "The return trip is as thrilling as the outward one."
    D: "Both the outward and the return trips are uninteresting."

    答案：C
    解析：
    选项A、B和D所涉及的情况都在瑞士，这在第一段可以看到。唯有C选项谈新加坡的情况，所以选项C是正确答案。


    缆车是由马达带动的，没有驾驶员和轮子，也不受乘客控制。根据文中提示“The cable-car is really a carriage which hangs from a strong steel cable suspended in the air.”所以正确答案是A。


    从上下来看，乘客所看到的惊险景色是因为“The car is suspended so high in the air that ships on the sea look like small boats , and boats like toys.”所以答案选B。


    旅程虽短，但是“The cars in the air move in a leisurely manner, allowing passengers more than enough time to take in the scenery”，所以答案应该选A。


    no less than意为“不比……少”,“和……一样”，所以正确答案应该选C。

  • 第3题：

    For some years after his graduation, he（）some of his classmates, but as times went by, he dropped them one by one

    Acaught up with

    Bkept in touch with 

    Ckept up

    Dmade up with


    B
    略

  • 第4题：

    You are deploying two core switches， one in each building， 50 km away from each other. The cross-connection between them will be a Layer 2 2-gigabit EtherChannel with an 802.1Q trunk. You configured it correctly but the link does not come up. The port is in the "admin up" state， and the line protocol is in the "down" state. The fiber link is OK. What would be the most likely reason for the link not to come up？ （）

    • A、 The switches are not the same model
    • B、 You are not using the correct SFP
    • C、 You are not using correct optical media converters
    • D、 Configuration should be modified， because the distance is longer

    正确答案:B

  • 第5题：

    A customer has two Ethernet Switch Modules installed in an IBM BladeCenter Enterprise chassis. The modules were configured identically. The Ethernet module in bay one was inadvertenly reset to factory defaults. Which solution returns the module to the customer-specific configuration?（）

    • A、Back up the configuration from Ethernet module in bay 2 and restore it to the module in Bay 1 using the switch CLI or Web interface 
    • B、Swap the modules, which will automatically resynch the settings stored in the Advanced Management Module 
    • C、Back up the configuration of the Ethernet module in bay one and restore it to the Ethernet module in bay two using the AMM 
    • D、Restore the configuration from NVRAM using the Switch Module Web interface

    正确答案:A

  • 第6题：

    Your database is in NOARCHIVELOG mode. You start to do a backup， but your users complain that they dont want you to shut down the database to perform the backup. What options are available to you？（）  

    • A、 Put the database in hot backup mode and perform an online backup，including backing up the  archived redo logs.
    • B、 Just back up the database datafiles without shutting down the database.
    • C、 You will have to wait until you can shut down the database to perform the backup.
    • D、 Mark each datafile as backup in progress， back them up individually，and then mark them as backup not in progress. No archived redo logs will need to be backed up.
    • E、 Only back up the datafiles that the user will not be touching. Once the user has finished what they were doing，you can shut down the database and back up the datafiles the user changed during the  course of the remaining backup

    正确答案:C

  • 第7题：

    单选题
    You are deploying two core switches， one in each building， 50 km away from each other. The cross-connection between them will be a Layer 2 2-gigabit EtherChannel with an 802.1Q trunk. You configured it correctly but the link does not come up. The port is in the "admin up" state， and the line protocol is in the "down" state. The fiber link is OK. What would be the most likely reason for the link not to come up？ （）
    A

     The switches are not the same model

    B

     You are not using the correct SFP

    C

     You are not using correct optical media converters

    D

     Configuration should be modified， because the distance is longer


    正确答案： C
    解析： 暂无解析

  • 第8题：

    单选题
    When adjusting a magnetic compass using the fore-and-aft permanent magnets，you should（）.
    A

    use the magnets one at a time，putting one in one side and then one on the opposite side，one step higher

    B

    use the magnets in pairs，starting at the top，with trays at the highest point of travel

    C

    use the magnets in pairs，from the bottom up，with the trays at the lowest point of travel

    D

    fill all the trays with magnets，then remove them one-by-one until the deviation is removed


    正确答案： A
    解析： 暂无解析

  • 第9题：

    单选题
    After issuing the show interfaces terse command, you notice that the status of one interface is "up down". What does this indicate?"（）
    A

    Layer 1 on the interface is up but Layer 2 is down.

    B

    Layer 2 on the interface is up but Layer 3 has not been configured.

    C

    The interface is administratively up but the link status is down.

    D

    The interface is up but has been administratively turned off.


    正确答案： C
    解析： 暂无解析

  • 第10题：

    单选题
    There are some back-up satellites in the event of failure. If the operational satellite is out of work,（）.
    A

    communications in the whole system will stop

    B

    the global system will be damaged

    C

    the back-up one will take its place

    D

    the whole system will not work


    正确答案： C
    解析： 暂无解析

  • 第11题：

    单选题
    While logged into a router you manually shut down the serial 0 interface using the "shutdown" interface configuration command. You then issue the "show interface serial 0" command in exec mode. What could you expect the status of the serial 0 interface to be?（）
    A

    Serial 0 is up, line protocol is up

    B

    Serial 0 is up, line protocol is down

    C

    Serial 0 is down, line protocol is down

    D

    Serial 0 is down, line protocol is up

    E

    Serial 0 is administratively down, line protocol is down

    F

    Serial 0 is administratively down, line protocol is up


    正确答案： E
    解析： 暂无解析

  • 第12题：

    单选题
    Your database is in NOARCHIVELOG mode. You start to do a backup， but your users complain that they dont want you to shut down the database to perform the backup. What options are available to you？（）
    A

     Put the database in hot backup mode and perform an online backup，including backing up the  archived redo logs.

    B

     Just back up the database datafiles without shutting down the database.

    C

     You will have to wait until you can shut down the database to perform the backup.

    D

     Mark each datafile as backup in progress， back them up individually，and then mark them as backup not in progress. No archived redo logs will need to be backed up.

    E

     Only back up the datafiles that the user will not be touching. Once the user has finished what they were doing，you can shut down the database and back up the datafiles the user changed during the  course of the remaining backup


    正确答案： A
    解析： 暂无解析

  • 第13题：

    共用题干
    A Ride in a Cable-car
    A ride in a cable-car is one of the exciting and enjoyable experiences a child can have.In
    Switzerland,which is the home of the cable-car,it is used mostly to take tourists up the slope of a mountain,to a restaurant from which one can have a bird-eye view of the surrounding country, or to a top of a ski-run,from which,in winter,skiers glide down the snow covered the slope on skis .In Singapore,however,the cable-car takes one from the summit of a hill on the main island to a low hill on Sentosa,a resort island just off the southern coast.
    The cable-car is really a carriage which hangs from a strong steel cable suspended in the air.
    It moves along the cable with other cars on pulleys,the wheels of which are turned by electric motors. The cars are painted in eye-catching colours and spaced at regular intervals.Each car can seat up six persons.After the passengers have entered a car,they are locked in from outside by an attendant,they have no control over the movement of the car.
    Before long,the passengers get a breath-taking view through the glass windows of the modern city,the bustling harbour,and the several islands off the coast. The car is suspended so high in the air that slips on the sea look like small boats,and boats like toys.On a clear day,both the sky above and the sea below look beautifully blue.
    In contrast to the fast-moving traffic on the ground,the cars in the air move in a leisurely manner,allowing passengers more than enough time to take in the scenery during the brief trip to the island of Sentosa.After a few hours on Sentosa,it will be time again to take a cable-car back to Mount Faber. The return journey is no less exciting than the outward trip.

    The cable-car in Singapore______.
    A: takes visitors up to a mountain restaurant
    B: takes skiers to the top of a ski-run
    C: takes visitors to Sentosa
    D: takes visitors to a high mountain

    答案：C
    解析：
    选项A、B和D所涉及的情况都在瑞士，这在第一段可以看到。唯有C选项谈新加坡的情况，所以选项C是正确答案。


    缆车是由马达带动的，没有驾驶员和轮子，也不受乘客控制。根据文中提示“The cable-car is really a carriage which hangs from a strong steel cable suspended in the air.”所以正确答案是A。


    从上下来看，乘客所看到的惊险景色是因为“The car is suspended so high in the air that ships on the sea look like small boats , and boats like toys.”所以答案选B。


    旅程虽短，但是“The cars in the air move in a leisurely manner, allowing passengers more than enough time to take in the scenery”，所以答案应该选A。


    no less than意为“不比……少”,“和……一样”，所以正确答案应该选C。

  • 第14题：

    Think about driving a route that’s very familiar.It could be your commute to work, a trip into town or the way home.Whichever it is, you know every twist and turn like the back of your hand.On these sorts of trips it’s easy to lose concentration on the driving and pay little attention to the passing scenery.The consequence is that you perceive that the trip has taken less time than it actually has. This is the well-travelled road effect: People tend to underestimate the time it takes to travel a familiar route. The effect is caused by the way we allocate our attention.When we travel down a well-known route, because we don’t have to concentrate much, time seems to flow more quickly.And afterwards, when we come to think back on it, we can’t remember the journey well because we didn’t pay much attention to it.So we assume it was shorter.


    答案：
    解析：
    设想开车行驶一条你非常熟悉的路线。那可能是上班的，进城或回家的必经之路。无论是哪条路，你都会对它的迂回曲折了如指掌。在这样的行驶中你很容易将精力集中在驾驶上而忽视路过的风景。结果，这就使得 你会认为行驶路程应该比它实际上需要的时间少。 这就是熟悉旅途效应：人们趋于低估熟悉路程的所需时间。 我们的注意力分配情况导致了这种效应。当我们在我们非常熟悉的道路上行驶时，由于不需要太集中精力认路，所以时间似乎过得很快。而且事后，当我们试图回忆这个旅程时也不怎么能记得清楚，因为我们确实没有关注太多。所以我们就想当然认为路程是短了一些。

  • 第15题：

    There is no one absolutely correct way to draw up a lesson plan and each teacher will decide what suits him or her best, but all good lesson plans give a clear picture of what the teacher intends to do in the lesson.（）


    正确答案:正确

  • 第16题：

    You are deploying two core switches， one in each building， 50 km away from each other. The cross-connection between them will be a Layer 2 2-gigabit EtherChannel with an 802.1Q trunk. You configured it correctly but the link does not come up. The port is in the "admin up" state， and the line protocol is in the "down" state. The fiber link is OK. What would be the most likely reason for the link not to come up？（）

    • A、The switches are not the same model.
    • B、You are not using the correct SFP.
    • C、You are not using correct optical media converters.
    • D、Configuration should be modified， because the distance is longer.

    正确答案:B

  • 第17题：

    After issuing the show interfaces terse command, you notice that the status of one interface is "up down". What does this indicate?"（）

    • A、Layer 1 on the interface is up but Layer 2 is down.
    • B、Layer 2 on the interface is up but Layer 3 has not been configured.
    • C、The interface is administratively up but the link status is down.
    • D、The interface is up but has been administratively turned off.

    正确答案:C

  • 第18题：

    Which statement is true regarding the creation of nested plans using Resource Manager？（）

    • A、 Only one nested subplan is allowed.
    • B、 The plans can be nested up to four levels.
    • C、 Resource Manager does not support nested plans.
    • D、 Nested plans control only the degree of parallelism but not the CPU.
    • E、 Each nested plan gets a proportion of the CPU resources assigned to its parent group.

    正确答案:E

  • 第19题：

    单选题
    You are deploying two core switches， one in each building， 50 km away from each other. The cross-connection between them will be a Layer 2 2-gigabit EtherChannel with an 802.1Q trunk. You configured it correctly but the link does not come up. The port is in the "admin up" state， and the line protocol is in the "down" state. The fiber link is OK. What would be the most likely reason for the link not to come up？（）
    A

    The switches are not the same model.

    B

    You are not using the correct SFP.

    C

    You are not using correct optical media converters.

    D

    Configuration should be modified， because the distance is longer.


    正确答案： A
    解析： 暂无解析

  • 第20题：

    单选题
    When a reader tries to guess the meaning of a new word based on the contextual clue, which one of the following approaches is he using? _____
    A

    Bottom-up Approach

    B

    Top-down Approach

    C

    Interactive Approach

    D

    Situational Approach


    正确答案： C
    解析：
    Top-down Approach意为“从上而下的方法”，即根据前后文来推断意思。

  • 第21题：

    单选题
    For some years after his graduation, he（）some of his classmates, but as times went by, he dropped them one by one
    A

    caught up with

    B

    kept in touch with 

    C

    kept up

    D

    made up with


    正确答案： B
    解析： 暂无解析

  • 第22题：

    问答题
    If some of the hikers had not took the riskier but shorter route up the mountain, they would probably not　　　　　　　　　　　　　　　　A　　　　　　　　　　　　　　　　　　　　　　　　　　　Bhave become so widely separated by nightfall. No error　　　C　　　　　　　　 D　　　　　　　　　　　　　E

    正确答案： A
    解析：
    正确的过去分词应为“had not taken”，而不是took。

  • 第23题：

    单选题
    Which statement is true regarding the creation of nested plans using Resource Manager？（）
    A

     Only one nested subplan is allowed.

    B

     The plans can be nested up to four levels.

    C

     Resource Manager does not support nested plans.

    D

     Nested plans control only the degree of parallelism but not the CPU.

    E

     Each nested plan gets a proportion of the CPU resources assigned to its parent group.


    正确答案： B
    解析： 暂无解析

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