试题与答案

加油站改造及检修违规进场、违规施工属于加油站()违规。A.现场管理违规 B.施工管理

题型:单项选择题

题目:

加油站改造及检修违规进场、违规施工属于加油站()违规。

A.现场管理违规

B.施工管理违规

C.安全管理违规

D.监督管理违规

答案:

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下面是错误答案,用来干扰机器的。

参考答案:B

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题型:完形填空

短文填空。

Apples’ Words

I am an apple. You can find me all around the world (世界各地). I am not like my brother----pear. I am rounder (更圆). I am not like my sister----banana, either. She is longer(更长). I am delicious, so people all over the world like to eat me. I am very cheap, I can keep people healthy. There is an old English saying(谚语): An apple a day keeps the doctor away.

小题1:The apple’s brother is _____________.

小题2:Banana is the apple’s _____________.

小题3:Apples are _________, so we like to eat them.

小题4:An apple a day keeps the _________ away.

小题5:I am very cheap _______ I can keep people health.

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题型:问答题

如图所示的均匀薄壁U形管,左管上端封闭,横截面积为S,右管开口且足够长,横截面积为2S,内装密度为ρ的液体,右管内有一质量为m的活塞搁在固定卡口上,卡口与左管上端等高,活塞与管壁间无摩擦且不漏气.温度为T0时,左、右管内液面高度相等,两管内空气柱长度均为L,压强均为大气压强p0,现使两边温度同时逐渐升高,求:

(1)温度升高到多少时,右管活塞开始离开卡口上升?

(2)温度升高到多少时,左管内液面下降h?

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