为什么内齿轮绞车采用四压两戗固定时,戗柱柱窝深度不得小于50mm?

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问题:

为什么内齿轮绞车采用四压两戗固定时,戗柱柱窝深度不得小于50mm?

考点:煤矿安全生产知识竞赛煤矿运输知识考试煤矿运输知识考试题库
题型:问答题
用所给的句子完成对话。
A. I'm sorry to hear it.
B. May I speak to John?
C. I'm afraid I can't do that today.
D.Is that Mrs Black speaking?
E. Can I take a message for John?
A: Hello! Who's that speaking?
B: Hello! This is Mary.   _1__
A: Sorry ,John  isn't  in.
B: __2__
A: Yes. This is Mrs Black.
B: Mrs Black ,I called at four thirty this afternoon, but nobody was in.
A: Oh,we were all out. John wasn't back home then. Mr Black and I went for a business talk.   3__
B: Yes,please. John asked me to go shopping with him  this afternoon.   _4_   My mother is ill .l have to stay at home to look after her.
A: __5 _ .Just stay at home and take a good care of your mother.
B: Thank you very much. Bye !
题型:问答题

挫折是一种考验,它能让悲观者失望,让脆弱者退缩,让坚强者成功。( )

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清代张聪贤的《官箴》:“吏不畏吾言,而畏吾廉;民不服吾能,而服吾公;公则民不敢慢,廉则吏不敢欺。公生明,廉生威。”这告诫我们党和政府的各级领导干部应该做到[ ]

①自觉接受人民监督

②始终保持清正廉洁

③正确履行管理职能

④依法行使手中权力

A、①③

B、①②

C、②④

D、③④

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经营者不得以盗窃、利诱、胁迫或者其他不正当手段获取权利人的

A.不正当竞争
B.经营者
C.社会监督
D.商业秘密
E.公平竞争

题型:问答题

下列对资格预审文件/投标文件递交的叙述,错误的是( )。

A.从招标文件开始发售到投标文件递交截止日不得少于10天

B.送达地点一定要详细告知

C.送达地点可附地图

D.对于逾期送达的或者未送达指定地点的资格预审文件/投标文件,招标人不予受理

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