单项选择题 某刚体作定轴转动，其上任意两点A和B，
单项选择题 合同规定散装大米约100公吨,出口方至少要发货( )公吨。 A、100 B、90 C、95 D、98
多项选择题 What should a chair say, when participants are straying from the point? A、Since this is an especially important problem, let us concerntrate a bit and discuss it more deeply. B、So far we have discussed the following three points: one…; two …; and three …. Can we concentrate on these three points? C、We sincerely hope that all present here will feel free to express your ideas and exchange various opinions. D、Mr. Smith, I’m afraid we can’t hear you. Would you please speak louder or make use of one of the microphones in the center of the lecture hall?
A.
B.
C.
D.
