安宫牛黄丸的功效是
A．清热开窍，化痰解毒
B．清热开窍，化浊解毒
C．清热开窍，辟秽解毒
D．清热开窍，豁痰解毒
参考答案：D
Faced with a bill for ＄10,000,________.
A．John has taken an extra job
B．the boss has given John an extra job
C．an extra job has been taken
D．an extra job has been given to John
小儿前囟门闭合的时间是（）。
A.6—8个月
B.10—12个月
C.12—14个月
D.12—18个月
E.20—24个月
