自动卸载阀检修后应做的检验有()。A.开启压力试验 B.旁路阀开启试验 C.防爆性能

题型:单项选择题

问题:

自动卸载阀检修后应做的检验有()。

A.开启压力试验

B.旁路阀开启试验

C.防爆性能试验

D.卸载压力和恢复压力试验

考点:矿井泵工矿井泵工题库
题型:单项选择题

新增固定资产价值包括( )。

A.已投入生产或交付使用的建安工程造价

B.项目可行性研究费

C.土地使用权出让金

D.报废工程损失

E.土地征用及迁移补偿费

题型:单项选择题

如图是我国第一艘航母首航图片。一艘航母的舰载机飞离航母后,航母底部受到的水的压强和航母受到的浮力将(  )

A.压强减小,浮力增大

B.压强增大,浮力增大

C.压强减小,浮力减小

D.压强增大,浮力减小

题型:单项选择题

创新对企事业和个人发展的作用表现在()。

A.是企事业持续、健康发展的巨大动力

B.是企事业竞争取胜的重要手段

C.是个人事业获得成功的关键因素

D.是个人提高自身职业道德水平的重要条件

题型:单项选择题
If Mickey Mouse slips (滑倒)on a banana skin on TV, viewers laugh. But for ordinary people, falling is not   36 . For example, if you   37 over a stone or fall off your bike, you have to take days to get well. For   38 people, the result of a fall could be worse.
Scientists at the University of Pittsburgh, USA, wanted to know why some people are   39 likely to fall than others.
The researchers found that   40 means more than planting your feet on the ground and standing tall. Your brain   41 your sense of balance with information from your eyes and inner ears and the   42 from your feet and legs. If something goes wrong with any of these, you’re   43  to fall. People   44 to fall more often as they grow older because their senses are slower.
State of mind is important too. The research shows that when people know they’re walking on a slippery surface, they   45 their pace and walk with flatter feet. As a result, they fall less often.
“We actually   46 people slip and fall,” researcher Mark Redfern said. People of different ages fall on   47 in his lab. Cameras   48 their falls and a computer analyzes the information. Scientists then can   49 people who fall often how to be more watchful.
“If they get   50 to a lifelike but controlled environment, people can   51 learn to handle the   52 thing,” Redfern said.
Falls happen to everyone sometimes.   53 you see someone fall, think about why and offer a helping   54 . This person’s painful experience may   55 you from falling at the same place.
小题1:
A.unhappyB.excitingC.amusingD.foolish
小题2:
A.dropB.tripC.knockD.get
小题3:
A.slowB.youngC.oldD.active
小题4:
A.tooB.lessC.veryD.more
小题5:
A.balanceB.controlC.fallD.walk
小题6:
A.remainsB.imaginesC.thinksD.keeps
小题7:
A.touchingB.feelingC.walkD.pace
小题8:
A.likelyB.surelyC.possibleD.certain
小题9:
A.refuseB.meanC.tendD.like
小题10:
A.frightenB.quickenC.widenD.slow
小题11:
A.encourageB.makeC.stopD.challenge
小题12:
A.purposeB.groundC.accidentD.agreement
小题13:
A.broadcastB.recordC.playD.catch
小题14:
A.persuadeB.forceC.practiseD.train
小题15:
A.closedB.informedC.usedD.know
小题16:
A.eventuallyB.firstlyC.regularlyD.mainly
小题17:
A.uneasyB.realC.creativeD.hard
小题18:
A.Even ifB.While C.As far asD.Next time
小题19:
A.handB.stickC.wordD.leg
小题20:
A.warnB.remindC.preventD.defend
题型:单项选择题

特别重大事故在特殊情况下,批复时间可以适当延长,但延长的时间最长不超过()日。

A.30

B.60

C.40

D.50

更多题库