拨手保护装置即为()。A.推手式保护装置 B.摆杆护手装置 C.拉手安全装置 D.双

题型:单项选择题

问题:

拨手保护装置即为()。

A.推手式保护装置

B.摆杆护手装置

C.拉手安全装置

D.双手按钮式保护装置

考点:安全工程师安全生产技术安全生产技术4
题型:单项选择题
Danny is a schoolboy. He  36  in a small town. His home is about ten miles  37  school and the roads are not flat(平坦的). So it’s  38  for him to get to school. He   39 at about five thirty every day and has breakfast. Then he  40  school at around six o’clock. First, he  41  his bicycle to the bus station. That takes about forty minutes. 42 the bus takes him to school. It usually takes about thirty minutes. Sometimes he has 43 time for breakfast at home, so he has something for breakfast on the bus.
“I’ve never taken trains. It must be a lot 44 fun than taking buses,” says Danny. He studies very 45 at school. He hopes he can go to school in a big city some day. He can take a train to school then.
小题1:
A.livesB.worksC.playsD.teaches
小题2:
A.atB.from C.inD.for
小题3:
A.easyB.goodC.interestingD.difficult
小题4:
A.gets upB.gets toC.goes to bedD.goes to work
小题5:
A.gets backB.leaves forC.leavesD.gets
小题6:
A.byB.sendsC.onD.rides
小题7:
A.ThenB.ButC.AgoD.After
小题8:
A.muchB.noC.notD.a
小题9:
A.littleB.less C.moreD.many
小题10:
A.badlyB.bad C.hardlyD.hard
题型:单项选择题

某年7月1日中午12时30分52秒,广州市(约23°N)花地大道时间园里的九条铁柱瞬间失去黑影,出现“立竿无影”的天文奇观,引得现场观看的数百名广州市民称奇。据此回答题。

1.此景象发生时                                                                                                                            (  )

A.地球公转到远日点附近                    B.地球公转到近日点附近

C.北极点出现极夜期间                        D.南极点出现极昼期间

2.此景象在一年内会出现两次,另一次可能发生在                                                      (  )

A.4月18日前后                                B.6月11日前后

C.8月11日前后                                D.10月6日前后

题型:单项选择题

参与合成蛋白质的细胞器主要有粗面内质网、()和游离核糖体3种。其中,参与合成分泌蛋白质的是()和高尔基复合体2种。

题型:单项选择题

中国工会在全国开展“进万家门,知万家情,解万家难,暖万家心”的送温暖工程10年来,累计筹款104亿多元,走访慰问了48万多户困难企业和3975万户职工家庭。这体现了[ ]

①社会主义本质的要求     

②中 * * 扶危济困的传统美德

③党的“三个代表”的要求  

④我国证在实施西部大开发战略

A、①③④        

B、①②③⑤          

C、①②③       

D、②③④

题型:单项选择题

关于塑件脱模时的摩擦引起的模具磨损,说法正确的是()

A、使型腔径向尺寸变大

B、使型芯径向尺寸变小

C、使型芯高度尺寸变大

D、使中心距尺寸不变

E、使型腔径向尺寸变小

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