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问题 单项选择题

下列各项中，符合中枢神经系统白血病血液生化改变的是（）

A.脑脊液压力降低

B.脑脊液白细胞减少

C.脑脊液蛋白质减少

D.脑脊液糖定量增加

E.脑脊液涂片中可找到白血病细胞

答案

参考答案：E

单项选择题

线路设备大、中修完毕后，混凝土橡胶垫板、胶垫片及衬垫无缺少、损坏，歪斜者不得超过（）（连续检查100头）。

A、0.06

B、0.08

C、0.1

D、0.12
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单项选择题

There is a difference between science and technology. Science is a method of answering (1) questions; technology is a method of solving practical problems. Science has to do with discovering the facts and relationships between (2) phenomena in nature and with establishing theories that (3) to organize these facts and relationships; technology has to do with tools, techniques, and (3) for applying the findings of science. Another (5) between science and technology has to do with the progress in each.

Progress in science (6) the human factor. Scientists, who seek to understand the universe and know the truth within the highest degree of (7) and certainty, cannot (8) their own or other people’s likes or dislikes or to popular ideas about the fitness of things. What scientists discover may shock or (9) people-as did Darwin’s theory of evolution. But even an unpleasant truth is (10) than likely to be useful; besides, we have the choice of refusing to believe it! But (11) so with technology; we do not have the choice of refusing to hear the sound produced by a supersonic aircraft flying overhead; we cannot refuse to breathe polluted air. (12) science, progress in technology must be measured (13) the human factor. The purpose of technology is to serve people—people (14) , not merely some people; and future generations, not merely those who presently wish to (15) advantage for themselves.

We are all familiar with the (16) use of technology. Many people blame technology itself (17) widespread pollution, resource depletion (枯竭) and even social decay in general—so much (18) the promise of technology is " (19) " That promise is a cleaner and healthier world. If wise applications of science and technology do not (20) a better world, what else will

16（）

A.invalid

B.illiterate

C.indecent

D.improper
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