早期发现肺结核病人最有效的途径是（） A.有可疑结核症状者进行胸部X线和痰找结核菌

如图所示，在O点固定一点电荷Q，一带电粒子P从很远处以初速度v₀射入电场，MN为粒子仅在电场力作用下的运动轨迹。虚线是以O为中心，R₁、R₂、R₃为半径画出的三个圆，且R₂-R₁=R₃-R₂，a，b，c为轨迹MN与三个圆的3个交点，则下列判断正确的是（   ）

A．P、Q两电荷可能为同种电荷，也可能异种电荷

B．a点电势一定高于b点电势

C．P在a点的电势能小于在c点的电势能

D．P由a点到b点的动能变化的绝对值大于由a点到c点的动能变化的绝对值

Directions: Read the following passage carefully and then translate each underlined part into Chinese.
21. We might be inclined to attribute to the act of thinking complete from language if the individual formed or were able to form his concepts without the verbal guidance of his environment. Yet most likely the mental shape of an individual, growing up under such conditions, would be very poor. Thus we may conclude that the mental development of the individual and his way of forming concepts depend to a high degree upon language. This makes us realize to what extent the same language means the same mentality. In this sense thinking and language are linked together.
What distinguishes the language of science from languages, as we ordinarily understand the word How is it that scientific language is international What science strives for is an utmost acuteness and clarity of concepts as regards their mutual relation and their correspondence to sensory data. As an illustration, let us take the language of Euclidean geometry and algebra. They manipulate with a small number of independently introduced concepts, respectively symbols, such as the integral number, the straight line, the point, as well as with signs which designate the fundamental concepts. This is the basis for the construction, respectively definition of all other statements and concepts. The connection between concepts and statements on the one hand and the sensory data on the other hand is established through acts of counting and measuring whose performance is sufficiently well determined.
22. The super-national character of scientific concepts and scientific language is due to the fact that they have been set up by the best brains of all countries and all times. In solitude and yet in cooperative effort as regards the final effect they created the spiritual tools for the technical revolutions which have transformed the life of mankind in the last centuries. Their system of concepts has served as a guide in the bewildering chaos of perceptions so that we learned to grasp general truths from particular observations.
23. What hopes and fears does the scientific method imply for mankind I do not think that this is the right way to put the question. Whatever this tool in the hand of man will produce depends entirely on the nature of the goals alive in this mankind. Once these goals exist, the scientific method furnishes means to realize them. Yet it cannot furnish the very goals. The scientific method itself would not have led anywhere. It would not even have been born without a passionate striving for clear understanding.
24. Perfection of means and confusion of goals seem--in my opinion--to characterize our age. If we desire sincerely and passionately the safety, the welfare and the free development of the talents of all men, we shall not be in want of the means to approach such a state. Even if only a small part of mankind strives for such goals, their superiority will prove itself in the long run.

古诗文名句默写。（10分）

小题1:蒹葭苍苍，                   。(《诗经·蒹葭》)

小题2:见贤思齐焉；                    。(《论语》)

小题3:                  ，悠然见南山。(陶渊明《归园田居》)

小题4:海内存知己，                    。(王勃《送杜少府之任蜀川》)

小题5:抽刀断水水更流，                    。(李白《宣州谢朓楼饯别校书叔云》)

小题6:晴川历历汉阳树，                    。(崔颢《黄鹤楼》)

小题7:                    ，一览众山小。(杜甫《望岳》)

小题8:                    ，病树前头万木春。(刘禹锡《酬乐天扬州初逢席上见赠》)。

小题9:欧阳修说：“忧劳可以兴国，逸豫可以亡身。”这句话继承了孟子“                    ，                     ”的思想，是历史经验的深刻总结。

在下列如此情况下，企业可以不受限制地延长工作时间______。

A．为完成和其他单位所签合同所规定的工作任务

B．劳动合同中所约定的情形

C．发生水灾，组织抢救企业财产

D．企业工作规程规定的其他情形

多为处于急性情绪危象，甚至精神崩溃或企图自杀的人提供的心理咨询形式为

A．门诊心理咨询

B．信函心理咨询

C．电话心理咨询

D．专题心理咨询

E．网上心理咨询