杰克就读于南半球澳大利亚首都堪培拉的学校，他们放暑假的时间一般是[ ]
A．1月
B．4月
C．7月
D．10月
答案：A
The young teacher wants to help his students as much as he can, but ________ the other hand, he'd better help them learn on their own.
制剂、方剂与成药之间有什么关系？
