3. A man cannot smile like a child , a child smiles with his eyes, while a man smiles with his lips alone.
A. so
B. but
C. and
D. for
查看答案
4. there are too many people there, we have to find another house.
A. Because; so
B. Though; but
C. Since; /
D. /; if
5. it is snowing, we shall not go out.
A. Before
B. After
C. Until
D. As
以下各项中，没有体现出博弈论思想的是（ ）。
A. 田忌赛马
B. 掩耳盗铃
C. 鹬蚌相争
D. 螳螂捕蝉
纳什均衡是指在某个策略组合中，任何一个参与人的收益相对于其他人的策略而言，都是最优反应，因此纳什均衡点上的每个人都没有再单独改变策略的动机。（ ）
A. 对
B. 错
微信支付 
支付宝支付