阅读理解。 The question "How long do fish liv

题型:阅读理解

问题:

阅读理解。

    The question "How long do fish live?" is not as simple as it seems. There are thousands of different kinds

of fishes, and they are quite different from each other in size and life period. What's more, it is not easy to

find out just how long a fish lives in its natural state.

     We can find out how old a fish is by studying its scales, but we can not say how long more it would have

lived if we had not caught it.

     We may keep fishes and record their life period but we can't be sure that this is the length of time they

would have lived had they been left alone.

     We may make marking to show how fast the fishes grow so that we can calculate the age of the largest

on record, but unless this large fish dies of old age we are still not in a position to know its natural life period.

     Unlike human beings, fishes do not stop growing when they have grown up. They continue to grow as

long as they live, although the speed of growth slows down in mature fishes.

1. What can the scales of a fish tell us?[ ]

A. Its age

B. Its life period

C. Its size

D. Its growth speed

2. How can we find out the natural life period of a fish? [ ]

A. We ought to keep a fish with great care.

B. This article refers to no way of settling the problem.

C. We must go on recording while we're keeping a fish.

D. We should make marking of its growth speed and calculate its life period.

3. In the last sentence "mature fishes" refer to _____ fishes. [ ]

A. young

B. sea-water

C. fully-grown

D. fresh water

考点:科教类阅读
题型:阅读理解

供静脉注射用的注射剂质量要求中没有下列哪项( )

A.不溶性微粒检查
B.无菌检查
C.无热原检查
D.溶血试验
E.钠离子检查

题型:阅读理解

属于糖尿病微血管病变的是

A.肾小球硬化症

B.肾动脉硬化

C.视网膜微血管病

D.冠状动脉粥样硬化症

题型:阅读理解

阅读理解.

     Rabbits are easy to raise. They are clean and quiet. They don't need a lot of room. And

it costs a small amount of money to feed them , but you get a big return.

     One male and two females will produce as many as fifty more rabbits in a year. That is

enough to provide enough meat for a family. Rabbit meat is high in protein and low in fat.

     You don't have to be a farmer to raise rabbits. You can raise them in the city.

     Rabbit houses are easy to make with wood and wire. They don't have to be very big.

But each rabbit must have its own little room in the house. This is very important. Each

room should be about 75 centimeters wide,60 centimeters high and one meter deep.

     Fencing is used for the sides and floor of the rabbit house. The holes in the wire fencing

should be about one centimeter square.Waste from the animals will drop through the holes.

This keeps the rabbit house clean and dry.

     Rabbits need a lot of fresh air and sunlight. Cover the sides of the rabbit house only to

protect it from rain.

     Rabbits eat mostly grass and leaves. Hang feeding containers on the outside of the house

to let the rabbits eat whenever they want. They simply pull the grass and leaves through

the holes in the fence.

Each room should have fresh water. The water containers should be heavy so the rabbits

cannot turn them over. Or you can tie the containers to the fence.

     One month after mating (交配) , female rabbits give birth to about eight babies. In two

months,a baby rabbit should weigh about two kilograms. This is big enough to make a

meal for a small family.

     Rabbits are also valuable for their fur. It takes time, skill and money to prepare the fur

and skin for use. If you have only a few rabbits,it probably would be best to let a tanner

(制革工) prepare the fur for you. Skill is also needed to remove the fur from the rabbit.

     But rabbits do not have to be dead to be valuable .Many people enjoy keeping rabbits

as friendly pets. And rabbit waste makes an excellent fertilizer(肥料) . Itcanbemixeddirectly

into the soil to improve the growth of vegetables , trees and flowering plants.

1. The text is written mainly _______.

A. to explain why rabbits are clean and quiet

B. to let people know more about rabbits

C. to tell readers how to raise rabbits

D. to introduce a small friendly animal pet

2. What is important if you raise rabbits?_______

A. Holes are needed for waste to drop through.

B. Each rabbit must be given a separate room.

C. Each room must have clean water every day.

D. Feeding containers are hung on the fence.

3. Why should the holes in the wire fence be about one centimeter square ?______

A. Because the holes let in sunlight.

B. Because rabbits like these holes.

C. Because rabbits get food from them.

D. Because waste of rabbits drops through the holes.

4. We learn from the text that rabbits ________.

A. need enough fresh air and sunlight

B. produce a lot of waste every day

C. feed on only fresh grass and leaves

D. make better pets than dogs and cats

5. What does the underlined sentence in the last paragraph mean?______

A. You don't have to kill rabbits to make more money.

B. Rabbits cannot be sold to make money when they are alive.

C. Rabbits are more valuable when they are alive.

D. Rabbits have to be killed to be more valuable.

题型:阅读理解

40岁农民患者,诊断为左肺炎球菌肺炎,治疗上该患者应用青霉素800万U,每日2次静点,3d后体温未明显下降,左胸痛加重。

治疗方面下列哪项有误

A.加用头孢菌素类药物
B.如能由浆膜腔抽出液体,应做细菌培养
C.浆膜腔冲洗
D.青霉素可以继续应用
E.抗生素疗程5~7d

题型:阅读理解

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