横骨(耻骨)长：
A．耳门B．听宫C．听会D．上关E．下关
参考答案：C
安全“三控”指什么？
Take these pills three times a day. Come back and see me in a week.（）
A.Thank you very much indeed.
B.I can't make it.
C.I haven't decided yet.
D.Good idea!
