决定供给弹性的首要因素是（）。 A.资金有机构成 B.时间 C.产_爱下问搜题

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问题单项选择题

决定供给弹性的首要因素是（）。

A.资金有机构成

B.时间

C.产品价格

D.投入品替代性大小和相似程度

答案

参考答案：B

解析：本题考查影响供给价格弹性的因素。决定供给弹性的首要因素是时间。

阅读理解

Four friends are talking about their hobbies. Let’s listen and learn about what their hobbies are.

Wang Ting	I love painting so much. I began to paint at primary school (小学), I have never stopped. I have sold some of my paintings and I hope more and more people will like my paintings.
Danny	My hobby is collecting erasers. Isn’t it a little unusual? Why do I like erasers? Because they smell good and they are beautiful. Now I have more than 200 erasers. If you have beautiful erasers, maybe we can trade (交换) them with each other.
Liu Mei	I like food, so I often travel around the country to eat different kinds of delicious foods.
Li Ming	Playing basketball is my favourite sport. I often spend my weekends playing it with my friends. I’m a member of the school basketball team. I make a lot of friends while playing basketball.

小题1:Whose hobby is painting?

A．Li Ming’s.

B．Wang Ting’s.

C．Liu Mei’s.

小题2:Danny likes collecting erasers because ________.

A．they are expensive

B．his mother likes erasers very much

C．they are interesting

D．they smell good and look beautiful

小题3:Liu Mei often travels around the country because she wants to ________.

A．make many new friends

B．eat different kinds of delicious foods

C．have a look at the scenery

D．drink different kinds of nice drinks

小题4:What does Li Ming often do on weekends?

A．He often plays basketball with his friends.

B．He often does his homework at home.

C．He often plays computer games at home.

D．He often watches TV with his parents.

小题5:Which of the following is True?

A．Liu Mei has sold some of her paintings.

B．Danny has collected one hundred erasers now.

C．Wang Ting didn’t study painting at primary school.

D．Li Ming makes many friends when he plays basketball.

多项选择题

能缓解烟碱样作用的解毒剂有（）

A.解磷定

B.氯磷定

C.双复磷

D.阿托品

E.樟柳碱