某柴油机为混凝土搅拌机的动力装置，该柴油机铭牌上所标注的有效功率是( )。
A．持续功率
B．15分钟功率
C．1小时功率
D．12小时功率
参考答案：C
I’m afraid he’s more of a talker than a doer, which is______ her never finishes anything.
A．that
B． when
C．where
D．why
—_______ won the 100-meter race at last?
—Tony. [ ]
A. Which
B. What
C. Who
D. Whose
