问题
单项选择题
( )是指机械的设计者，在设计阶段采取措施来消除机械危险的一种机械安全方法。
A．本质安全
B．失效安全
C．定位安全
D．布置安全
答案
参考答案：A
解析：本质安全是指机械的设计者，在设计阶段采取措施来消除隐患的一种实现机械安全的方法。
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( )是指机械的设计者，在设计阶段采取措施来消除机械危险的一种机械安全方法。
A．本质安全
B．失效安全
C．定位安全
D．布置安全
参考答案：A
解析：本质安全是指机械的设计者，在设计阶段采取措施来消除隐患的一种实现机械安全的方法。
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| One evening, Mr Green was driving his car along a lonely country road. He had __1_ $10 000 from the bank in town. Suddenly a man in rags stopped him and asked for __2_. Mr Green told him to get on and continued his way. _ 3 _ he talked to the man, he _ 4 _ that he had just broken out of prison. Mr Green was very afraid at the __5_ of the money. Suddenly he saw a police－car and had a _ 6 _ idea. He _ 7_ speed and drove as quickly as possible. Then he found the police-car running _ 8_ him. After a mile _9 _ the police-car passed him and ordered him to stop. A policeman came up. Mr Green had hoped to tell him about the trouble but the man put a gun to Mr Green's _10 . The policeman said he wanted Mr Green's name and _11_ and Mr Green obeyed. The policeman wrote it down in his notebook and put it in his _12_. "You _13_ appear at the police station. " He said. Then he talked to Mr Green about _14_ driving. Mr Green started up his car again. He had _15_ all hope of his ￡10,000, but as he reached a more lonely part, the robber said he wanted to _16_. Mr Green stopped and the man said. "_17. You've been _18_ to me. This is what I can do in _19 " And he handed Mr Green the policeman's _20_, which was stolen while the policeman was talking to Mr Green. | |||
| ( )1. A. taken ( )2. A. money ( )3. A. As ( )4. A. recognized ( )5. A. sight ( )6. A. fast ( )7. A. put on ( )8. A. behind ( )9. A. and so ( )10.A. head ( )11.A. number ( )12.A. car ( )13.A. shall ( )14.A. careful ( )15.A. held out ( )16.A. run away ( )17.A. I'm sorry ( )18.A. kind ( )19.A. all ( )20.A. gun | B. held B. help B. Since B. learned B. idea B. bright B. got on B. with B. or so B. shoulder B. home B. pocket B. will B. normal B. build up B. break away B. You're welcome B. polite B. fact B. pen | C. brought C. a lift C. Then C. supposed C. touch C. strange C. took on C. after C. and so on C. back C. place C. hand C. would C. drunk C. given up C. set out C. That's all riht C. known C. return C. money | D. drawn D. a ride D. Because D. expected D. thought D. bad D. had on D. beside D. or so on D. neck D. address D. trousers D. need D. dangerous D. turn over D. get out D. Thank you D. necessary D. the end D. notebook |