发动机功率的单位是（）
A.N·m
B.Kw
C.r/min
D.rpm
参考答案：B
— What made Alice so upset?
— _____. [ ]
A. Peter's leaving without saying goodbye
B. Peter left without saying goodbye
C. Peter was leaving without saying goodbye
D. Peter had left without saying goodbye
下列行为人中，______不应当成为被追索人。
A．背书人、出票人 B．承兑人、保证人C．未经承兑的承兑汇票付款人D．支票的付款人
