中性粒细胞反应性增多常见于()。 A.急性髓性白血病 B.慢性粒细胞白血病 C.系统

题型:单项选择题

问题:

中性粒细胞反应性增多常见于()。

A.急性髓性白血病

B.慢性粒细胞白血病

C.系统性红斑狼疮

D.再生障碍性贫血

E.化学物质或药物中毒

考点:预防医学与公共卫生学毒理学毒理学题库
题型:单项选择题

 Waste can be seen everywhere in the school. Some students ask for more food than they can eat and others often forget to turn off the lights when they leave the classroom. They say they can afford these things. But I don’t agree with them.

Waste can bring a lot of problems. Although China is rich in some resources(资源), we are short of(缺乏) others, for example, fresh water(淡水). It is reported that we will have no coal(煤) or oil to use in 100 years. So if we go on wasting our resources, what can we use in the future and where can we move? Think about it. I think we should say no to the students who waste things every day. Everybody should stop wasting as soon as possible.

In our everyday life, we can do many things to prevent waste from happening, for example, turn off the water taps(水龙头) when we finish washing, turn off the lights when we leave the classroom, try not to order more food than we need, and so on. Little by little, everything will be changed. Waste can be stopped one day, if we do our best.

小题1:From the passage we know that some students often _______ in the school.

A.eat too much

B.don’t work hard

C.waste things

D.throw rubbish everywhere小题2:Which is not mentioned in this passage?

A.Fresh water.

B.Forest.

C.Oil.

D.Coal.小题3:What may happen in 100 years?

A.We may still have enough oil.

B.We may still have enough coal.

C.We may have a little oil.

D.We may have no coal or oil to use.小题4:Which is the best title of this passage?

A.Stop Wasting

B.School life

C.Waste in the School

D.Rich Resources in China

题型:单项选择题

下列属于电话调查的优点是()。

A.节省调查时间

B.费用支出较少

C.调查问卷回收率低

D.灵活

题型:单项选择题

计算题:已知某一电阻为2MQ,通过的电流为2mA,求电阻两端的电压?

题型:单项选择题

电缆或其它被试品在进行直流耐压试验时,下列说法正确的是()

A.试验时如果升压速度太快,会使充电电流过大,而损坏试验设备

B.击穿电压随着升压速度的升高,会有所降低,而使试验结果不准

C.一般控制升压速度在1~2kV/s

D.一般控制升压速度在2~4kV/s

题型:单项选择题

The danger associated with using carbon dioxide in an enclosed space is().

A.frostbite

B.skin burns

C.asphyxiation

D.an explosive reaction

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