脱式计算(能用简便方法计算的要用简便方法).17.5-4.25-5.751.68

题型:解答题

问题:

脱式计算(能用简便方法计算的要用简便方法).
17.5-4.25-5.75
1.68÷(2.4×2-4.6)
9
36
÷[
3
4
-(
7
16
-
1
4
)].
考点:小数的四则混合运算及应用
题型:解答题

结核菌素皮肤试验中的助强效应,即第一次PPD皮试阴性者,1~2周复试时则呈现阳性反应,其可能机制是()。

A.机体免疫反应低下

B.PPD作为致敏原,使T淋巴细胞致敏

C.PPD作为抗原第二次进入机体诱导体液免疫反应

D.PPD第二次进入,增强机体的免疫回忆反应

E.PPD第二次进入,诱导树突状细胞的活化

题型:解答题

A new study gives us the warning that about thirty percent of the world's people may not have enough water by the year 2025.

A private American organization called Population Action International did the new study. It says more than three-hundred-thirty-five-million people lack enough water now. The people live in twenty-eight countries. Most of the countries are in Africa or the Middle East.

P-A-I researcher Robert Engelman says by the year 2025, about three-thousand-million people may lack water. At least 18 more countries are expected to have severe water problems. The demand for water keeps increasing. Yet the amount of water on Earth stays the same.

Mr. Engelman says the population in countries that lack water is growing faster than in other parts of the world. He says population growth in these countries will continue to increase.

The report says lack of water in the future may result in several problems. It may increase health problems. Lack of water often means drinking waters not safe. Mr. Engelman says there are problems all over the world because of diseases, such as cholera, which are carried in water. Lack of water may also result in more international conflict. Countries may have to compete for water in the future. Some countries now get sixty percent of their fresh water from other countries. This is true of Egypt, the Netherlands, Cambodia, Syria, Sudan, and Iraq. And the report says lack of water would affect the ability of developing to improve their economies. This is because new industries often need a large amount of water when they are beginning.

The Population Action International study gives several solutions to the water problem. One way, it says, is to find ways to use water for more than one purpose. Another way is to teach people to be careful not to waste water. A third way is to use less water of agriculture.

The report also says long-term solutions to the water problem must include controls on population growth. It says countries cannot provide clean water unless they slow population growth by limiting the number of children people have.

小题1:__________ are expected to have severe water problems by the year 2025

A.No countries

B.18 countries

C.46 countries

D.28 countries小题2:All the following are true except____________.

A.Lack of water may cause conflict between countries

B.Egypt now has enough fresh water

C.There are solutions to the water problem

D.New industries need a lot of water小题3:It can be inferred that _____________.

A.There is connection between providing clean water and slowing population growth

B.Lack of water may also result from international conflict

C.The ability of developing has nothing to do with lack of water.

D.It is not known whether diseases have something to do with lack of water小题4:What is the solution to the water problem for a long time?

A.Not to waste water.

B.Less developing industries.

C.Less international conflict.

D.Control the population小题5:The best title of the passage would be __________.

A.World Conflict

B.Diseases and Water

C.World Water Shortage

D.Population and Water

题型:解答题

关于周转性贷款,下列说法正确的是()。

A.周转性贷款是银行对企业在正常生产经营过程中经常性占用的合理流动资金需要所发放的贷款

B.它具有短期周转、长期使用的特点

C.在贷款报审材料中应注意说明:借款人的资信情况、经营隋况、财务状况

D.在贷款报审材料中应注意说明:借款人在未来时期的获利能力和偿债能力

E.除了在贷款申报材料注意说明的内容,还应考虑银行的资金情况和银行的利益

题型:解答题

下列不属于杜甫作品的是()。

A.《兵车行》

B.《春望》

C.《秋水》

D.《登高》

题型:解答题

在考生文件夹下新建一个名为“图书管理”的项目文件。

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