Li Dong            more than half of his liver to Army to save her life. [ ]

A. took

B. brought

C. donated

D. lost

劳动合同对劳动报酬和劳动条件等标准约定不明确，没有集体合同或者集体合同未规定劳动报酬的，实行( )。

A．多劳多得
B．按劳分配
C．同工同酬
D．效率优先，兼顾公平