以液体作为工作介质来进行动力和能量传递的传动方式称为（）.
参考答案：液体传动
正常人血红蛋白含量男性为（）
A.110～150g/L
B.120～160g/L
C.120～150g/L
D.110～160g/L
E.170～200g/L
The boy suggested that Tom ______ the problem another way, and Tom’s expression suggested that he_________.
A．should solve; agreed
B．solve; agree
C．solved; should agree
D．solved; agreed
