对于睾丸鞘膜积液的描述，下列哪些正确（） A.睾丸鞘膜积液是指睾丸鞘膜的脏、壁两层之

Cooperation(合作) and competition are 1  important. They’re necessary for a person to achieve success in life.

Learn to be cooperate with others. No one likes a selfish(自私的) or greedy(贪婪的)person. However, everyone likes a cooperative and friendly person. Everything we do today,   2  in doing business or making friends, depends on our ability to  3 with one another. In our society, most tasks(任务) need the cooperation of many people  4 they can be finished successfully. So we must try to be cooperative. Each person   5 a small part of a machine . If only one part is out of order, the machine can’t be running  well.  6 , transportation and communication systems are developing quickly and people all over the world can keep in line with each other _7 . It’s hard for a person who is away from the society to have a deep understanding of the world he 8 . Cooperation is becoming more and more important for a person to get a good life.

Being competitive(竞争的) also has a place in life. If you want to get more success and be better than others, you must work harder and study more carefully. The desire(愿望) to succeed and do better than others   9 us to work harder. If there were no competitions, a sports meeting would never be   10 and successful, and we could never have champions(冠军).

We cooperate with others to be more competitive, we compete to get a better environment for cooperation leads(带领) us to realize our goals and meet our needs.

根据短文内容选择正确答案。

小题1:A. all                B. both                    C. neither

小题2:A. if                 B. weather                 C. whether

小题3:A. get along          B. get off                 C. get back

小题4:A. in order           B. in order to             C. so that

小题5:A. likes              B. is like                 C. looks like

小题6:A. Except             B. Besides                 C. But

小题7:A. easier             B. much better             C. more easily

小题8:A. lives in           B. lives on                C. lives

小题9:A. encourage          B. encourages              C. encouraged

小题10:A. excited            B. interested              C. exciting

（2005年北京理综卷第22题）“黑盒子”表面有a、b、c三个接线柱，盒内总共有两个电子元件，每两个接线柱之间只可能连接一个元件。为了探明盒内元件的种类及连接方式，某位同学用多用电表进行了如下探测：

第一步：用电压挡，对任意两接线柱正、反向测量，指针不发生偏转

第二步：用电阻×100挡，对任意两个接线柱正、反向测量，指针偏转情况如图1所示。

（1）第一步测量结果表明盒内________。

（2）图2示出了图1〔1〕和图1〔2〕中欧姆表指针所处的位置，其对应的阻值是_______Ω，图3示出了图1〔3〕中欧姆表指针所处的位置，其对应的阻值是__________Ω。

（3）请在图4的接线柱间，用电路图符号画出盒内的元件及连接情况。

（4）一个小灯泡与3V电池组的连接情况如图5所示。如果把图5中e、f两端用导线直接相连，小灯泡仍可正常发光。欲将e、f两端分别与黑盒子上的两个接线柱相连，使小灯泡仍可发光。那么，e端应连接到__________接线柱，f端应连接到_______接线柱。

ARQ中，副台收到WRQSRQPAXYZ刚表示7位呼码为（）

A．XZYWSPA

B.XYZWRQS

C.PAXYZWS

D.WSPAXYZ

在软件产品交付后产品仍然需要不断进行修改，其中用来检测和纠正软件产品中的潜在故障，使其不成为有效故障的行为是______。

A．完善性维护
B．适应性维护
C．改正性维护
D．预防性维护

如未按常规程序进行塑料热处理操作，结果义齿基托会出现“花基板”，且发生变形，密合度差

下列哪项因素不是产生“花基板”的原因

A．升温过快，或过高
B．粉液比过多或过少
C．压力不足
D．填充塑料过迟或过早
E．热处理时间过长