二项分布是描述只有两种可能结果的多次重复事件的连续型随机变量的概率分布。 ( )
参考答案:错
It is reported that the ambassador together with the working staff______ kidnapped by a group of gunmen who _______ into the American Embassy in Iraq last night but the news is not yet confirmed by the US government. [ ]
A. was; burst
B. were; went
C. was; entered
D. were; made their way
1933年11月,发动抗日反蒋的福建事变的国民党十九路军将领是( )
A.冯玉祥
B.蔡廷锴
C.吉鸿昌
D.蒋光鼐