乙醇—正丙醇的折光率—组成工作曲线为一直线,两点即可定一线,本实验为何还要进行多点测

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问题:

乙醇—正丙醇的折光率—组成工作曲线为一直线,两点即可定一线,本实验为何还要进行多点测定?

考点:物理学物理学题库
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When you see the girl for the first time, you may think she is a boy. She is very outgoing(外向). Who is she? Wang Meng, the Chinese top skater.

On the evening of February 26th, 2010, Wang Meng first got to the finishing line in 1 minute and 29.213 seconds in the women’s 1000 meters short track speed skating final(短道速滑决赛)at the Vancouer Olympic Winter Games(温哥华冬奥会). After she succeeded in the 500-meter and 3000-meter races, she won her third gold medal this time. With this one China won four gold medals in the women’s short track speed skating. That helped China first win the team gold medal in Winter Olympics history.

Just before the final race Wang Meng caught a bad cold and coughed terribly. With the words of “You can, you can do!” she won at last. She said, “I really feel these three gold medals belong to my team, to China. It was with the help of my team that I won the prize.”

Though Wang Meng is only twenty-four, she has been the most successful Chinese skater. Chinese are proud of her and her team. We hope she will be faster in Sochi Olympics in 2014.

小题1:China won ________gold medals in the women’s short track speed skating.

A.2

B.3

C.4

D.5小题2:It took Wang Meng 1 minutes and 29. 213 seconds to finish the________ short track speed skating final.

A.women’s 1000

B.men’s 1000

C.women’s 500

D.men’s 500小题3:In Wang Meng’s opinion, ________made her win the prize at last.

A.a strong body

B.a bad cold

C.her team’s help

D.much exercise小题4:Which of the following is NOT true according to the passage?

A.Wang Meng is very outgoing like a boy.

B.Wang Meng is the most successful Chinese skater.

C.Chinese people are proud of Wang Meng and her team.

D.China has got the team gold medal twice in Winter Olympics history.

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涉外谈判的基本原则是()

A.平等性

B.独立性

C.互利性

D.不卑不亢

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举例说明最终产品和中间产品的区别不是根据产品的物质属性而是根据产品是否进入最终使用者手中。

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心肌梗死并发室壁瘤,主要见于()

A.左心室

B.室间隔

C.右心房

D.右心室

E.左心房

题型:问答题 简答题

A型行为者的冠心病的发病率比B型行为者大()

A.1倍

B.2倍

C.3倍

D.4倍

E.5倍

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