铂热电阻的铂纯度常以及R100/R0来表示，R100表示纯水在0℃时铂电_爱下问搜题

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问题判断题

铂热电阻的铂纯度常以及R100/R0来表示，R100表示纯水在0℃时铂电阻的电阻值，R0表示纯水在100℃时铂电阻的电阻值。

答案

参考答案：错

单项选择题

测量较长导轨在垂直平面内的直线度误差时，采用（）法较为合适。

A.间接测量

B.实物基准

C.光学基准

完形填空

When I come across a good article in reading newspapers, I often want to cut and keep it．But just as I am about to do so, I find the article on the   36  side is as much interesting．It may be a discussion of the way to  37  in good health, or  38  about how to behave and conduct oneself in society．If I cut the front article, the opposite one is likely to  39   damage, leaving out half of it or keeping the text 40 the title．Therefore, the scissors would  41  before they start, 42   halfway done when I find out the 43   result．
Sometimes two things are to be done at the same time, both worth your  44 ．You can only take up one of them, the other has to wait or be 45  up．
But you know the future is unpredictable—the changed situation may not allow you to do what is left 46 ．Thus you are  47   in a difficult position and feel sad．How  48  that nice chances and brilliant ideas should gather around all at once? It may happen that your life   49  greatly on your preference of one choice to the other．
In fact that is what  50 is like: we are often  51   with the two opposite sides of a thing which are both desirable like a newspaper cutting．It often occurs that your attention is drawn to one thing only  52   we get into another．The  53  may be more important than the latter and give rise to divided mind．I  54   remember a philosopher's remarks: "When one door shuts, another opens in life．" So a casual  55   may not be a bad one．