关于女性生殖系统解剖下列哪项是错误的()
A.子门是指 * * 口
B.产道是指 * *
C.阴户是指妇女外阴
D.毛际是指阴阜
E.交骨是指耻骨联合
参考答案:A
--I'm told that John had another car accident this morning.
--I believe not. He _________so careless.
A.shouldn't have been
B.wouldn't have been
C.couldn't have been
D.mustn't have been
在水泥磨的运转中,出磨物料少,怎样操作和处理?