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问题 单项选择题

某公司股票为价格加权平均指数中的样本股，若该公司总股本增加，但股票价格维持不变，则该股票在指数中的权重会相应（ ）。

A．上升

B．下降

C．不变

D．不确定

答案

参考答案：C

单项选择题

女，23岁，已婚，孕20周，因白带多、外阴疼痛、尿痛2天就诊，1周前有性生活史。妇查前庭充血， * * 有大量绿色脓性分泌物，挤压 * * 前壁 * * 口有脓流出，宫颈充血水肿，有脓性分泌物流出，子宫、附件（-）。该患者最可能的诊断是（）

A.妊娠合并淋病

B.妊娠合并梅毒

C.妊娠合并滴虫 * * 炎

D.妊娠合并外阴化脓性感染

E.妊娠合并巨细胞病毒感染
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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

17（）

A.for

B.on

C.with

D.of
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