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问题 单项选择题

已知等成本曲线与等产量曲线既不相交也不相切，此时，要达到等产量线所表示的产出水平，应该（）。

A.增加投入

B.保持原投入不变

C.减少投入

D.或A或B

答案

参考答案：A

听力题

阅读短文，然后用短文括号中所给词的适当形式填空。

Believe it or not: the more TV you watch, the  小题1: (little) happiness you get. This is the result of a new study. It shows that unhappy people watch more TV than happy people.

Well, you may say that you enjoy  小题2: (watch ) TV. In fact, TV gives you happiness for a short time, but unhappiness for a long time.

Why? It is because, if you watch TV, you cannot take part in many other good  小题3: (activity). And sometimes, if you are unhappy, you  小题4: (usual) prefer being a couch potato(整天坐在沙发上看电视的人)，right? Watching TV is relaxing to you.

Then if you want to be happy, what should you do? You can read newspapers, visit  小题5: (you) friends, go to parties, … but don’t watch television all the time. Now turn off the TV, and take a walk outside. It’s the  小题6: (one) step to being happy!
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单项选择题

痛经气滞血瘀证，其主要证候中，以下哪项是错误的( )

A．血色暗淡，质清稀

B．舌质紫黯，脉弦

C．小腹胀痛拒按

D． * * 胀痛

E．经血量少
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