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【简答题】
10个产品中有7个正品、3个次品,从中不放回地抽取两个, 已知第一个取到次品,第二个又取到次品的概率为_______。(用4位小数表示)
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参考答案:
举一反三
【单选题】未持居留证件的外国人和来中国留学的外国人,未经中国政府主管机关允许,不得在中国( )
A.
旅游
B.
居留
C.
担任志愿者
D.
就业
【单选题】一个装配尺寸链中,至少有( )个增环,一个减环和一个封闭环。
A.
B.
C.
D.
【简答题】Directions: Read the following text. Choose the best word(s) for each numbered blank and mark A,B,C or D on ANSWER SHEET Ⅰ. The government is to ban payments to witnesses by newspapers seeking to buy ...
【判断题】一个装配尺寸链中,至少有一个增环,一个减环和一个封闭环。
A.
正确
B.
错误
【简答题】Directions: Read the following text. Choose the best word(s) for each numbered blank and mark A,B,C or D on ANSWER SHEET Ⅰ. It was a foolish question to ask. It (1) more sense for me to have learned i...
【简答题】Directions: Read the following text. Choose the best word(s) for each numbered blank and mark A ,B,t2 or D on ANSWER SHEET I. (10 points) Black death that drove Newton from his college and into a mome...
【简答题】Directions: Read the following text. Choose the best word(s) for each numbered blank and mark A,B,C or D on ANSWER SHEET Ⅰ. At the beginning of the century, medical scientists made a surprising discov...
【判断题】未持居留证件的外国人和来中国留学的外国人,未经中国政府主管机关允许,不得在中国就业
A.
正确
B.
错误
【判断题】8086 系统中存储器寻址比寄存器寻址的运算速度快。 ( )
A.
正确
B.
错误
【简答题】Directions: Read the following text. Choose the best word(s) for each numbered blank and mark A ,B, C or D on ANSWER SHEET I . ( 10 points) In the United States, the first day-nursery was opened in 18...
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