试题与答案

在Fe-Fe3C合金中,其平衡组织中含有二次渗碳量最多的合金的含碳量为()A、0.0

题型:单项选择题

题目:

在Fe-Fe3C合金中,其平衡组织中含有二次渗碳量最多的合金的含碳量为()

A、0.0008%

B、0.021%

C、0.77%

D、2.11%

答案:

参考答案:D

试题推荐
题型:阅读理解

A large number of people in the world eat fast food. Whenever you go into a fast food restaurant, you can see lots of people enjoying their meals there. But do you know in which country people like fast food best?

The English people are the world’s biggest fans of fast food, while the French(法国人) are the least interedted in quick meals, according to a survey done last year.

The servery of thirteen countries shows 45% of the English people say they can’t give up fast food  because it’s delicious. And 44% of Americans and 37% of Canadians say the same.

The French, proud of their delicious and high class cuisine, don’t like fast food. 81% of them think it is unhealthy, followed by 75% of the Japanese.

How about the Chinese? How often do you have hamburgers or fried chicken? It doesn’t matter whether you like western fast food or Chinese food. The most important thing is to keep a balanced diet.

小题1:From the survey we know _________ like fast food best.

A.the Chinese

B.the French

C.the Japanese

D.the English小题2:The survey shows _________ of Americans like fast food.

A.37%

B.44%

C.75%

D.81%小题3:According to the survety, some people can’t give up fast food because ________.

A.it’s cheap

B.it’s safe

C.it’s delicious

D.it’s healthy小题4:_________ people are the world’s biggest fans of fast food.

A.English

B.Chinese

C.American

D.French小题5:The survey is about _________.

A.western countries

B.fast food

C.restaurants in the world

D.Chinese food

查看答案
微信公众账号搜索答案