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【简答题】
根据加工要求,工件必须限制的自由度没有达到全部限制的定位,称为 。
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举一反三
【简答题】A.It's difficult to find birds for recording. B.It's difficult to find quiet areas for recording. C.It's difficult to find animals for recording. D.It's difficult to find mammals for recording.
【单选题】What does the woman want to do?
A.
To find out the best way to New York.
B.
To find out information on traveling by bus.
C.
To find out the cheapest way to get to New York.
【判断题】世界三大国际航空客运联盟中总部设在美国的是星空联盟。()A. 对 B. 错
A.
正确
B.
错误
【单选题】Why did John decide to go to the village?
A.
To find his folk to help him flee.
B.
To find a peaceful place for rest.
C.
To cure his wound.
D.
To find food and drink.
【单选题】定时计数器工作在模式(),不需要再中断服务程序中赋初值。
A.
0
B.
1
C.
2
D.
3
【单选题】Why should you check newspapers?
A.
To find a used car.
B.
To find the cheapest item.
C.
To find a less expensive meal.
【单选题】设 和 是两个相互独立的连续型随机变量,其概率密度分别为 和 ,分布函数分别为 和 ,则下列说法正确的是( ).
A.
必为某一随机变量的概率密度
B.
必为某一随机变量的概率密度
C.
必为某一随机变量的分布函数
D.
必为某一随机变量的分布函数
【单选题】(02年)设 和 是任意两个相互独立的连续型随机变量,它们的概率密度分别为 ,分布函数分别为 ,则
A.
必为某一随机变量的概率密度
B.
必为某一随机变量的概率密度
C.
必为某一随机变量的分布函数
D.
必为某一随机变量的分布函数
【简答题】A.They wanted to find out }tow to become wealthy. B.They wanted to find out how to live longer. C.They wanted to know what alcohol he drank. D.They wanted to know where to be given an injection.
【简答题】A.To find out exactly what happens. B.To save fuel to fly longer. C.To find out where the big stone is. D.To fly even more slowly.
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