单项选择题

Zero-sum game is a situation in which an economic _____________ by one country results in an economic _____________ by another.

A． win, win
B． loss, loss
C． gain, gain
D． gain, loss
<上一题 目录 下一题>
热门 试题

单项选择题
初乳中含有较多的镁盐，容易使犊牛腹泻。 A、正确 B、错误
判断题
8．桂枝与肉桂为同一植物来源的药物
相关试题