计量器具误差是指由于计量器具本身的设计、制造、装配等原因引起_爱下问搜题

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问题判断题

计量器具误差是指由于计量器具本身的设计、制造、装配等原因引起的计量器具的示值误差。

答案

参考答案：对

完形填空

A friend of mine met with an accident driving in darkness. His legs were so hurt that he couldn’t move. What was the   1  was that he found himself unable to ask for help—his mobile phone went out of   2   as a result of exhausted battery (无电) . Nothing could be done but to   3   in cold wilderness (荒野). It was eight hours later that day broke, and then   4   of the rescue (援救).
It is almost   5   that he could stand （忍受）the horror in the darkness for so long. Even more surprising was his   6  : “First of all, I checked up my   7     conditions and found myself not in mortal (致命的) danger. As there was no   8   to call for help, I leaned back in my seat trying my best to keep the wound from   9  . In this way I dozed (瞌睡) off.”
His story put an end to my regret (遗憾) for the   10   of an exploration adventure (探险) that happened last year. A group of young men   11   to explore a mountain cave and got lost.   12   to find a way out in the dark cave they were frightened and ran anxiously without a sense of   13  . Finally they felt dead in fear and exhaustion. According to the   14   people that found them, the place where they got lost was only about 10 meters away from the   15   of the cave. If they stayed on the spot when they lost their way and tried to   16   themselves, they would probably sense a faint light glimmering (闪烁) not far away.
Don’t you think you can compare it with   17   itself? When you meet with difficulty in life and work, you are lost in darkness.   18   you it’s unclear yet and you needn’t put up struggle   19 . It seems to be a negative （消极）attitude,   20   a person who can afford to do so must have foresight (远见) as well as a great courage in the first place.

B．unimaginable

C．explanation

C．disappointment

B．immediately

单项选择题

物料的破碎系统，在生产过程中采用（）两种基本流程。

A.一级破碎和二级破碎

B.粗碎和细碎

C.开路和闭路