与顾客交谈时,不可长时间地凝视对方。一般情况下,眼睛注视对方的时间应为交谈总时长的()
A.60%
B.50%
C.40%
D.30%
参考答案:B
I have got a present. It is ____________ my mother. [ ]
A. from
B. for
C. to
D. of
手三阴经与足三阴经交于
A.头B.背部C.手指末端D.足趾末端E.胸腹