热电偶冷端温度补偿电路起什么作用？

发布时间：2018-09-04 07:20 │ 来源：www.tikuol.com

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问题：

热电偶冷端温度补偿电路起什么作用？

考点：过程控制系统与仪表过程控制系统与仪表题库

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阅读理解。

      Mother's Day is a holiday for mothers. It is celebrated (庆祝) in the United States, India and other
countries. In a short time, it becomes widely celebrated. Mother's Day is on the second Sunday in May.
On that day, many people send gifts of love to their mothers. Those whose mothers are still living often
wear a pink or red rose of carnation (康乃馨), while those whose mothers are dead wear a white one.
     The idea of a day for mothers was first given by Miss Anna Jarvis of Philadelphia. As a result of her
hard work, the celebration of the first American Mother's Day was held in Philadelphia on May 10, 1908.
Soon the holiday became popular all over the country and around the world.
     In China, people do the same on the same day for mothers. And in some cities, people sometimes ask
a song to be broadcast (广播) for his or her mother only. This might cost a little money for some of them,
but, as it says, "Love is invaluable."
     On May 8, 1999, just the day before the Mother's Day that year, a Chinese mother was killed in a
criminal bombing (罪恶暴行). Her name is Shao Yunhuan, a heroic mother. All the Chinese will remember
her for ever.

1. Mother's Day _____.

A: is a holiday for mothers.
B: is celebrated in the United States only.
C: is on May 10 every year.
D: was given by Miss Anna Jarvis.

2. What was the date of the Mother's Day in 1999?

A: May 7, 1999
B: May 8, 1999
C: May 9, 1999
D: May 10, 1999

3. On Mother's Day, people _____.

A: send some flowers to their mothers.
B: wear a pink or red rose or carnation.
C: wear a white flower.
D: send gifts of love to their mothers.

4. "Love is invaluable." Here "invaluable" means ______.

A: 美好的
B: 无价的
C: 永恒的
D: 无私的

5. Which of the following ideas do you agree to?

A: Shao Yunhuan is a heroic mother.
B: A Chinese mother is the same as an American mother.
C: The bombing can get away with the crime (逃过罪责).
D: All of the above

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下面为我国西南地区1月(左图)和7月(右图)晴天出现频率(％)图，读图回答1-2题。

1．1、7月晴天出现频率变化最大的地区是 [ ]

A．云贵高原东部

B．四川盆地

C．湖南和湖北西部地区

D．横断山脉和云贵高原西部

2．图中①地区1月晴天出现频率低的主要原因是[ ]

A．地形闭塞，空气流通不畅

B．受准静止锋影响

C．湖泊多，蒸发旺盛，水汽丰富

D．受来自印度洋湿润气流影响

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短期备用机车是指备用不少于（）并不超过1个月的机车.

A.12h

B.24h

C.48h

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对有下列哪些情形下的卖淫、嫖娼人员，可以不予收容教育( )

A．年龄不满14周岁的

B．患有性病以外其他急性传染病的

C．怀孕或者正在哺乳本人所生1周岁以内婴儿的

D．被拐骗、强迫卖淫的

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检验检疫机构受理未经注册登记的代理报检机构的代理报检业务( )

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