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【判断题】
1736在物流中心,物流箱常作拣货备货用,分有盖和无。A.
正确
B.
错误
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皮皮学刷刷变学霸
举一反三
【简答题】AutoCAD中,特殊点一定要在执行()命令或()命令后才能捕捉。
【简答题】晶面指数的确定步骤?
【单选题】The passage suggests that the Chicanos who 'raise hell' on Saturday night and go to church the next morning ______.
A.
are very religious
B.
are just trying to have a good time on the weekends
C.
come to church under the influence of alcohol
D.
have both a fun-loving and a serious side to their personality
【简答题】已知离散型随机变量X在2,4,6,7,9共5个值上等概率分布,则E[X]= 。
【单选题】Who in the Church doesn't? What does this question mean?
A.
Everyone in the church knows him.
B.
Nobody in the church knows him.
C.
Who is in the church?
D.
Who knows him in the church?
【单选题】已知离散型随机变量X满足E(X) = 0.1，D(X) = 0.89，则在下表所示的分布律中，p1,p2,p3的值分别为（）．【图片】
A.
0.4 ； 0.1 ； 0.5
B.
0.4 ； 0.5 ； 0.1
C.
0.1 ； 0.4 ； 0.5
D.
0.4 ； 0.4 ； 0.2
【简答题】AutoCAD中,特殊点一定要在执行绘图命令或()命令后才能捕捉。
【简答题】已知离散型随机变量X在2,4,6,8,10共5个值上等概率分布,则E[X]= 。
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