All the children like the teachers can understand them. [ ]
A.who
B.which
C.what
D.whom
A
风电机组手动启动和停机的四种操作方式为()操作、()操作、()操作和()操作。
具有温肾阳.温脾阳,温通血脉,引火归原功效的药物是()
A.附子
B.干姜
C.肉桂
D.吴茱萸
E.桂枝