have all the essential amino acids
are manufactured by the body
can mix with other proteins to form complete proteins
can be gained from meat, fish, eggs, and milk
第1题:
We get energy from the foods we eat.Our food supplies energy to keep our organs working.Our food also supplies heat to warm our bodies.
The main energy foods are the carbohydrates (碳水化合物).These are the sugars and starches(淀粉). Wheat and rice are rich in starch and many fruits and vegetables contain considerable amount of sugar. Sweets, honey and jam are also rich in sugar.
Like carbohydrates, fats are food that provides us with energy. Butter, margarine, certain types of fish, eggs, cooking oils and most red meats are rich in fats. Fats can be stored in various parts of the body as reserves of energy. Because fats in general are slowly digested, they satisfy hunger for long periods.
Proteins (蛋白质) are very complex substances. The body needs proteins for the growth of new cells and for the repair and replacement of old cells. Foods rich in proteins are essential to a balanced diet. Milk, some vegetables, meat, chicken, fish, cheese, grains and nuts are some foods rich in proteins.
A good diet will contain a variety of foods so that the body contains all the minerals it needs for good health.
Vitamins are necessary for the proper working of the body. If we eat a variety of foods, we can be sure of obtaining all the vitamins we need.
Water makes up about 70 per cent of the weight of the human body. The average adult needs about two liters of water daily to replace the water the body loses.
1.Of the following substances, which are not used as sources of energy by living things?()
A. Starches
B. Vitamins
C. Proteins
D. Fats
2.If equal weight of the following substances is “burned” in the body,
A. carbohydrates
B. fats
C. vitamins
D. mineral salts
3.A boy grows five centimeters a year.The new material
A. fats
B. vitamins
C. proteins
D.carbohydrates
4.Which of the following is not true?()
A. If a man weighs 150 pounds, 105 pounds are water.
B. Apple, butter and meat are rich in proteins.
C. A well-balanced diet contains proteins, fats, minerals and vitamins.
D. Biscuits, cake and sweets may provide us with energy.
5.People can get all the minerals the body needs by().
A. having a balanced diet
B. drinking more milk
C. eating fruits and vegetables
D. having more fish and eggs
第2题:
Which of the following statements can best be inferred from the passage?
A. Fishes only "speak" to communicate with each other.
B. Researches are now being made to study the significance of fish sounds.
C. Sea animals have a sharper hearing ability than men.
D. Sounds made by fish cannot be transmitted through the air.
第3题:
第4题:
第5题:
A customer wants to hold all enterprise data on their DS4000 system. Several servers were added after they purchased another company. The servers that have to be run are: (1)An Oracle database running on a HP-UX server (2)Several virtual machines running on VMWare ESX server (3)A Microsoft cluster running Exchange 2000 server Which of these new servers can be integrated with the DS4000?()
第6题:
You are performing an incomplete recovery because some important tables have been dropped and purged from the Recycle Bin. Which clause can you NOT use to perform the incomplete recovery by using the RMAN utility?()
第7题:
not willing to share food
not found around the poles
more successful than all other animals
too many to achieve any level of organization
第8题:
DS4000 storage does not support HP-UX, so the HP-UX server cannot be integrated.All other new servers can be used.
An Exchange cluster needs local disks, so the DS4000 cannot be used for this.All other new servers can be used.
When equipped with proper HBA’s and subsystem device drivers, all new servers can operate with the DS4000 storage device.
VMWare ESX can use the DS4000 storage; however, the virtual machines running in it will not have access to this storage other than via a virtual disk.All other new servers can be used.
第9题:
have all the essential amino acids
are manufactured by the body
can mix with other proteins to form complete proteins
can be gained from meat, fish, eggs, and milk
第10题:
people may have heart disease
people can work at home all the time
people like shopping online
people don’t like climbing the stairs
第11题:
第12题:
the hotels where you stay will offer you free breakfast
dining information can be obtained from your tour guides
you can have a complete choice of local dishes at the hotel
a full list of local restaurants can be found on the tour pages
第13题:
A. All OSPF routers in stubby areas can have type 3 LSAs in their database.
B. All OSPF routers in stubby areas can have type 7 LSAs in their database.
C. All OSPF routers in totally stubby areas can have type 3 LSAs in their database.
D. All OSPF routers in totally stubby areas can have type 7 LSAs in their database.
E. All OSPF routers in NSSA areas can have type 3 LSAs in their database.
F. All OSPF routers in NSSA areas can have type 7 LSAs in their database.
第14题:
第15题:
第16题:
第17题:
Which of the following can be utilized from a Legacy form without additional coding?()
第18题:
People may have different personalities.
People differ from each other in appearance.
People can learn to recognize human faces.
People can describe all human features of others.
第19题:
UNTIL CANCEL
UNTIL SCN
UNTIL SEQUENCE
UNTIL TIME
第20题:
It helps the adopted kids form a correct attitude to their complex heritage.
It helps the Chinese children have fun with their American parents.
It helps the Americans increase the adoption from Russia and China.
It helps the American parents adopt children from other countries.
第21题:
two
three
four
第22题:
may be obtained from vitamin and minerals
are being sought by scientists
can be gotten from soybeans
can be found in iodized salt
第23题:
第24题:
such proteins in whole milk are inducing in children under 12 months milk allergies
that under 12 months the proteins in whole milk can induce milk allergries in children
of proteins in whole milk inducing milk allergies in children under 12 months
the proteins in whole milk can induce milk allergies in children under 12 months
that the proteins in whole milk can induce milk allergies in children under 12 months