Sn348采集站面板右下方三蕊插座的功能是（）。A.接电话的插孔 B_爱下问搜题

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问题单项选择题

Sn348采集站面板右下方三蕊插座的功能是（）。

A.接电话的插孔

B.用于插检波器

C.接外接电源

D.连接两边来的遥测电缆

答案

参考答案：A

完形填空

Several years ago, a farmer owned some land along the sea. He advertised for workers, but no one wanted to work for him. Most people didn’t want to work there 31 they didn’t like the bad storms. Finally, a

32 man, who looked weak and more than fifty years old, came to see the farmer. “Are you a good farmhand?” the farmer asked him.
“Well,

I   33  sleep well when the wind blows.” answered the little man.
Although the answer was strange, the farmer let the man stay to work. The little man worked   34  around the farm, busy from morning till evening. The farmer felt very pleased with his work.
Then one night the wind began to blow strongly. Jumping out of the bed, the farmer   35  into the little man’s room. He shook the little man and cried, “Get up! A   36  is coming!”
The little man said slowly, “No sir, I told you----I can   37  well when the wind blows.”
The farmer was very angry, but he had to hurry outside to get ready for the storm. To his   38  , everything was ready outside.   39  could be blown away.
The farmer   40  what the man meant, so he returned to his bed to sleep while the wind was still blowing.

填空题

苯、甲苯酸洗比色（），苯的结晶点≮5.35℃。