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In SDH， what is the name of the embedded Data Communication Channel （DCC） in bytes D1-D3？（）A、 the DCC-EB、 the DCC-MC、 the DCC-RD、 the Line DCCE、 the Section DCC

题目

In SDH， what is the name of the embedded Data Communication Channel （DCC） in bytes D1-D3？（）

  • A、 the DCC-E
  • B、 the DCC-M
  • C、 the DCC-R
  • D、 the Line DCC
  • E、 the Section DCC
相似考题

1.——() ? —— I want to buy a pair of shoes.A. What are you doing?B. What can I do for you?C. How can I help you?D. How can I do for you?

2.—I really hope to keep in touch with Lily.—Sorry.I don't know .A.what her name is B.what her job isC.what her number is D.when she left

3.—I really hope to keep in touchwithLily.rn—Sorry. I don't know______.A.what her name isB.what her job isC.what her number isD.when she left

4.– I had a minor accident yesterday but fortunately nothing is serious. –()(A) What a relief to hear that!(B) I’m sorry to hear that.(C) What can I do for you?(D) Don’t worry.

更多“In SDH， what i”相关问题

  • 第1题：

    I don't regret ______ even if it might have upset her.

    A. to tell her what I thought

    B. to have told her that I thought

    C. telling what I thought

    D. telling her what I thought


    正确答案：D
    regret后接动名词表示“后悔干了某事”，后接不定式表示“遗憾要干某事”。

  • 第2题：

    —Have you ever tried shopping online? —No, never. ____________, especially for clothes and shoes.

    A I prefer to actually see and touch what I'm buying before I pay for it ;

    B I prefer not to actually see and touch what I'm buying before I pay for it ;

    C I would rather surf online and I pay for it immediately


    参考答案：A

  • 第3题：

    I want to know().

    A. what is his name

    B. what his name is

    C. what his name is


    参考答案：C

  • 第4题：

    — What’s the matter with you? — ()

    A、No, I don’t know.

    B、I feel rather unwell.

    C、Sure. What is it?

    D、That’s it.


    参考答案：B

  • 第5题：

    _________ I am! I've forgotten to post your letter.

    A. What forgetful a creature

    B. How forgetful a creature

    C. What a forgetful creature

    D. How a forgetful creature


    正确答案：C   

  • 第6题：

    -- ____________

    -- It looks nice. Can I try it on?

    A. What can I do for you?

    B. What would you like?

    C. What about this jacket?

    D. Let’s buy this jacket.


    正确答案：C

  • 第7题：

    -________?

    -I'd like to see a pair of brown shoes.

    A、What do you want

    B、What do you like

    C、What can I do for you

    D、Do you want to buy something


    参考答案：C

  • 第8题：

    —_________

    —Oh，l feel bad． I think I had a headache ．

    A． Can I help you?

    B． What's wrong with you?

    C． What are you doing?

    D． What's this?


    正确答案：B
    41．B【解析】根据后面的回答知道生病了，因此前面应该是问“你怎么了”之类。

  • 第9题：

    I didn′ t understand ____________. so I raised my hand to ask.

    A.what my teacher says
    B.what does my teacher say
    C.what my teacher said
    D.what did my teacher say

    答案：C
    解析：
    考查宾语从句的语序及时态。句意为“我不理解老师说的话，所以我举手提问”。本题前面的分句中含有what引导的宾语从句，宾语从句的语序一律用陈述句语序。排除B、D。因为主句是过去时态，所以从句也要用过去时态的某种形式。故选C。

  • 第10题：

    ――I'm looking for a shirt for my father．――＿＿＿＿Size 40．

    A.What size do you wear?
    B.What can I do for you?
    C.How about this one?
    D.What size does your father wear?

    答案：D
    解析：
    暂无解析

  • 第11题：

    （）I enjoy most is（）I can have a holiday from work.

    • A、That;that
    • B、That;what
    • C、What;what
    • D、What;that

    正确答案:D

  • 第12题：

    某SDH设备光单元盘上标有“I-4.1”表示什么？


    正确答案: 表示光接口的类型。I—局内通信；4—STM—4，1—工作波长1310nm，用G.652光纤。

  • 第13题：

    I had no ______of who I was or what I was going to be.

    A. mind

    B. idea

    C. think

    D. thought


    正确答案：B

    9．答案为B  我不知道我是谁，也不知道我将来会怎样。have no idea(of)表示“不知道……”，其他三个选项都无此意。

  • 第14题：

    —— ________ ?

    —— I have a headache, a sore throat and I’m feeling rather weak.

    A.What are you

    B.What’s the matter with you

    C.How are you today

    D.What can I do for you


    参考答案：B

  • 第15题：

    What is your job?I' m()accountant.

    A. a

    B. an

    C. I


    参考答案：B

  • 第16题：

    —What do you do? —________.

    A: I cook supper

    B: I do some shopping

    C: I'm a businessman

    D: I'm sorry


    正确答案: C

  • 第17题：

    –– James: Hi, Harry. ____

    –– Harry: Hi, James. I just bought a new camping tent. I can ’t wait to use it.

    A: What’s up?

    B: What’s on?

    C: What’s wrong?

    D: What’s right?


    参考答案：A

  • 第18题：

    Adam: Mmm….. This is the best pudding I've ever had!

    Celia:________ I know you'd like it.

    A、Didn't't I tell you?

    B、Did I say it right?

    C、Is what I said right?

    D、What did I say?


    参考答案：D

  • 第19题：

    Spike: I think I'll have a steak meal. ______

    A、What's your idea,Wendy?

    B、What about you,Wendy?

    C、What do you order?

    D、You order,Wendy.


    参考答案：B

  • 第20题：

    --Did you forget about Father's Day?
    --__________I've already booked a table at King's Restaurant.

    A．What for?
    B．I'm afraid so.
    C．How could I?
    D．So what?

    答案：C
    解析：
    考查交际用语。问句意为“你把父亲节给忘了吧 ”，答句意为“__________。我已经在帝王餐厅订好了位置”。根据答语可知，第二个人没有忘记。C项是“How could I(forget about Father’s Day)”的省形式，意为“我怎么能忘记呢”，符合句意。

  • 第21题：

    I always hold（ ）what I have said.
    to


    答案：
    解析：
    hold to“信守，坚持”，相当于keep to。句意：我总是信守诺言。又如：We shall hold firmly to what has already been agreed on.我们将信守已经达成的协议。

  • 第22题：

    I asked my teacher_______.

    A.what courses should I take
    B.should I take what courses
    C.I should take what courses
    D.what courses I should take

    答案：D
    解析：

  • 第23题：

    （）? -I am your agent. I want to see the captain.

    • A、What are you?
    • B、What can I do for you?
    • C、Where are you from?
    • D、What are you doing?

    正确答案:B

  • 第24题：

    单选题
    ______ is that I promised to make friends with the dishonest girl.
    A

    The only thing what I regret

    B

    What I regret most

    C

    All what I really regret most

    D

    That I regret most


    正确答案： B
    解析：
    句意：最让我后悔的是答应与那个不诚实的女孩交朋友。本题可以采用排除法。选项A，选项C里面都包含了一个定语从句，而what不能引导定语从句。如果选D项，主句将变成That is that…。所以只能选B项，这是what引导的主语从句。

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