没看出有纯的，也没算出混合的，看来我真是学的太差:)

是没有纯的，但肯定有混合的。可惜我算不出

the cross point(s) from player1,2's best response (fuction) , is the N.E. solutions!!  i.e. BR

this case we can eliminate T, beacause player 2 never use it . T is dominated by mixed strategies M and B. so the game is equal to                                player1

                         L           R

  player2      M     4,0        0,4

                  B      0,2        3,0

there exit one mixed N.E.:[σ(L),μ(M)]=[2/3,3/7],

*check: player 2's payoff=2/3 *2=(1-2/3)*4=4/3>1(T), so this rationalized the elimination

混合策略均衡是：1，（4/9,5/9）;2,(4/7,1/7,2/7)