羌活善治（）
A.少阴头痛
B.太阳头痛
C.阳明头痛
D.少阳头痛
E.厥阴头痛
参考答案：B
______ the teacher has given permission, ______allowed to use the equipment in the lab.
A．Only if, are the students
B．If only, the students are
C．If only, are the students
D．Only if the students are
购后冲突的程度与消费者个性有关系。
