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【简答题】
（12分）一只口袋内装有大小相同的5只球，其中3只，2只黑球，现从袋中每次球，每次取出不放回，连续取两次，问： （1）取出的两只球都是的概率是多少； （2）取出的两球至少有一个的概率是多少。
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皮皮学刷刷变学霸
举一反三
【简答题】设向量【图片】且向量【图片】 在向量【图片】上的投影向量为【图片】则 x= ____ .
【单选题】San Franciso's Chinatown is bigger than London's Chinatown.
A.
True
B.
False
C.
Not mentioned
【单选题】Spring Banquets hosted by family associations in Chinatown are still held today because .
A.
it is a Chinatown tradition
B.
Chinese Americans are unable to hold family dinners
C.
Chinatown is a society of single men
【单选题】Chinatown is known as the center of commerce and culture for Chinese immigrants, as well as a place to_______ them of their homeland.
A.
recall
B.
remind
C.
remember
D.
memorize
【简答题】在海外，“Chinatown”特指哪个地区?
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