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【简答题】
在总体N(52,6.32)中随机抽一容量为36的样本,求样本均值 落在50.8~53.8的概率。
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【判断题】未来考验零售企业的是如何挖掘消费者需求。
A.
正确
B.
错误
【单选题】According to the article, one reason for the discovery of new diseases is ____.
A.
According to the article, one reason for the discovery of new diseases is ____.
B.
According to the article, one reason for the discovery of new diseases is ____.
C.
changes to animal habitats bring humans and animals into contact
【单选题】船舶进行下列活动,应当编制作业方案,采取有效的安全和防污染措施,并报作业地海事管理机构批准:( )
A.
进行残油、含油污水、污染危害性货物残留物的接收作业,无需进行装载油类、污染危害性货物船舱的清洗作业;
B.
进行散装液体污染危害性货物的过驳作业;
C.
进行船舶水上拆解、水下船舶施工作业。
D.
船舶进行涉及污染物排放的作业
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【单选题】铃流和信号音都是( )发送的信号
A.
用户话机向用户话机
B.
用户话机向交换机
C.
交换机向用户话机
D.
交换机向交换机
【单选题】The reason for the traffic accident was _________ one of the drivers had lost control of his car.
A.
why
B.
when
C.
that
D.
how
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【单选题】At the same time there ______ the pressure on staff and this is perhaps one reason for the growth of white collar work unions in the banks.
A.
have increased
B.
are increasing
C.
was increased
D.
has been increased
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