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问题 问答题

为什么提升机严禁用常用闸进行紧急制动？

答案

参考答案：各种闸的设计性能各不相同，常用闸主要用于操作过程中的减速。用常用闸实施紧急制动时空动时间长，不利于及时制动；因此，必须使用安全闸进行紧急制动，保证及时制动。

填空题

The doctor-patient relationship is one of the (1) relationships in life, but many people say this relationship is beyond (2) . Can this relationship be saved The answer is (3) yes, because it must. And if that is lost, medicine becomes a technology and is (4) . In part the crisis in medicine began with doctors (5) themselves from patients.
The more critical work of a doctor happens in the taking of the human (6) . (7) is the most important and most difficult single transaction. The studies show that (8) of all the valuable information that leads to correct diagnosis comes from the history. Another (9) comes from the physical examination, 10% comes from simple (10) tests, and 5% comes from all the complex (11) . So listening is vital, because listening is not merely listening, but to establish a (12) .
But some doctors think listening is (13) . They like to use complex and costly (14) , and use (15) that create adverse reactions and require (16) . They don’t like to listen. Because there’s no premium on listening and that there’s no (17) for listening.
Even so, the doctor-patient relationship is not (18) saving. Because people may ask, what is good health And good health begins first and foremost with (19) . If you don’t care for a (20) , be somebody else, but don’t be a doctor!
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选择题

2007年1月5日，我国自行研制的第三代多用途战斗机__________公开亮相。随着第二代战斗机“太行”发动机和新一代空空导弹的研制成功，我国已成为世界上第_____个能同时自主研发先进战斗机、航空发动机和导弹的国家，缩短了与发达国家的差距。[ ]

A．歼——8   一               

B．歼——9   三  

C．歼——10   四              

D．歼——11    二
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