His parents wanted him to be a doctor, _____ they thought was a steady and well-paid job．

A．who

B．that

C． what

D．which

急性催眠药物重度中毒表现为（）。

A.感觉迟钝

B.嗜睡

C.腱反射亢进

D.浅昏迷

E.言语不清