“棍棒底下出孝子”，“不打不成才”这种说法（）。
A．有一定道理
B．是专制型的家教观念
C．是正确的教子观念
参考答案：B
— He asked Tom, "Have you finished your homework?"
— He asked Tom ___ .[ ]
A. if had he finished his homework.
B. whether he had finished his homework.
C. if he had finished homework.
D. if you had finished your homework.
下列关于术前准备的叙述中，哪项不正确
A．术前4小时开始禁止饮水
B．有吸烟习惯的患者应于术前1周开始停止吸烟
C．对操作时间长的大手术，术前应预防性应用抗生素
D．术前应学会正确咳嗽和咳痰的方法
