U   1, 1   0, 1

D   1, 0  −1, −1

Also show that there areinfinitely many Nash equilibria, only one of which has neither player playing aweakly dominated strategy.

为什么这个博弈有无限多个纳什均衡？？？还有后面半句是什么意思？？

另外有没有大佬有Jehle&Reny高级微观教材的练习题答案，不是hints，网上只有前五章的