下列腧穴中，不针不灸的是（）
A.承泣
B.人迎
C.缺盆
D.乳根
E.乳中
参考答案：E
（a+b）×c=[ ]
A.a×c+b×c
B.a×c×b×c
C.a×b×c×b
—How long have you been away from your hometown?
—______two years ago. [ ]
A. Since
B. For
C. In
D. From
