低压电器常用的灭弧方法有那些?

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问题:

低压电器常用的灭弧方法有那些?

考点:动力与电气工程机床电气控制技术机床电气控制技术题库
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If you’re into sports, you’ve seen it happen—tennis players jump over the net to shake hands after a hard match; football players exchange clothes after 90 minutes of knocking each other around; even boxers touch gloves at the beginning of each round. Players in every event, from spelling bees  to golf, act in this way. It’s all part of sportsmanship, a great tradition in sport and competition. It means playing and being calm all through the match.

Everyone feels great when they win. In the last few years, you might see some players celebrate a goal with a long victory dance or talk big about their ability. However, it’s always hard for people to say in public that they made a bad play. Good sportsmanship is what they really need. It’s the golden rule of sports.

Good sportsmanship means that you play by the rules, talk politely to everyone during games and stay cool even when you lose the game. At the school sports meeting, for example, it’s more important for you to know how to work as part of a team and cheer your teammates on. That may help you enjoy more success at your future work. In competition—as in life—you may not always win, but believe me, sportsmanship will help you get through, and there is always the next match.

根据短文内容,选择正确的答案。

小题1:What match do you know will last 90 minutes?

A.Tennis

B.Football

C.Golf

D.Spelling bees小题2:The underlined word “bees” in the passage means__________.

A.fly

B.competition

C.guess

D.research小题3:When people need good sportsmanship?

A.When they win the competition

B.When they made a bad play

C.When they are in public places

D.When they want to have a long victory小题4:Why does the author think good sportsmanship is really important?

A.It’s all part of sports .

B.It’s all part of celebration

C.It’s the golden rule of sports

D.It’s know to stay cool小题5:The passage mainly tells us that sportsmanship gets you through no matter whether _______.

A.you win or lost

B.you play or learn

C.you are happy or not

D.you feel hard or not

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下述对高铝水泥的叙述中,( )项是错误的。

A.不易用于大突击混凝土施工

B.不能进行蒸汽养护

C.不宜在高温季节施工

D.不宜冬季施工

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下列句中加线的词,活用方式完全相同的一项是[ ]

A.火尚足明也     常在险远

B.固知死生为虚诞     六王毕,四海

C.侣鱼虾友麋鹿      始舍其址

D.西望夏口,东武昌     顺流而

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人民币贷款利率实行()

A、上限管理

B、基准管理

C、市场定价

D、下限管理

题型:问答题 简答题

手术后常见并发症不包括( )

A.术后脑血栓
B.急性肝功能障碍
C.尿路感染
D.术后大出血或弥漫性血管内凝血
E.急性肾功能障碍

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