长距离整治水平时，在井下作业，看道人距起道机（）m，指挥作业。A.10—20 B.2

In the following essay, each blank has four choices. Choose the best answer and write down on the answer sheet.
The purpose of the testing phase of software development is not to (71) the absence of errors in the programs being tested, but rather to find as many errors as possible. This statement may seem to contradict one’s intuitive notion of a successful test of a piece of (72) ; however, a successful test is one in which errors have been found, net one in which no errors have been detected.
There are generally two kinds of testing method: human testing and machine testing. In most companies where systems are developed, the first testing that occurs is not machine testing, but rather the detection of errors through (73) , team efforts, referred to as walkthroughs and inspection. With these methods, the author of the program forms a group with others who represent programming expertise or who may be part of the project team.

A. logic B. content C. code D. physical

After code has been subjected to the manual testing described above, it is then machine test- ed. Again, the test cases are designed to detect the (74) number of errors. Incremental or integration testing occurs subsequent to unit testing. This means combing modules with those that have already been unit tested. The incremental approach not only tests the (75) of each module, but also the "rippling effects" of errors, and the interfaces among modules.

补充对话 (每空一词)。

A: Let's play __1__ , OK?

B: Sorry, I don't have a volleyball. __2__ I have a basketball.

A: I __3__ want to play basketball. I only want to play volleyball.

B: Who__4__ a volleyball?Do you know?

A: Maybe Tom has one. Let's go and ask him.

A and B:  Hi, Tom, __5__  you have a volleyball?

C: No, I __6__  .__7__ Peter have one?

A and B:  Oh, yes , he __8__ .

A, B and C:  Hi, Peter! Do you have a volleyball?

D:  Yes, I do. __9__  is here.

A B and C:  Let's play volleyball, OK?

D: OK! __10__ go!

某患者临床症状为：骨骼肌痉挛、瞳孔缩小、流涎、呼吸困难、腹痛。诊断为有机磷农药中毒。其中毒机制是

A．与ACh竞争细胞膜上的受体通道

B．使胆碱酯酶丧失活性

C．促进Ca2+进入神经轴突末梢

D．使ACh释放到接头间隙中过多

E．抑制ACh受体通道功能

电荷从正极向负极移动的形成的流光称为（）

A.正流光； 

B.负流光； 

C.反向流光； 

D.正向流光；

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