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【单选题】
两样本均数比较,差别具有统计学意义时,P值越小说明(    )
A.
两样本均数差别越大    
B.
两总体均数差别越大
C.
越有理由认为两样本均数不同    
D.
越有理由认为两总体均数不同
E.
越有理由认为两样本均数相同
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参考答案:
举一反三
【单选题】麦当劳曾提出一种“走动式”管理方式,这其实是现场控制的一种重要形式,现场控制工作的重点是
A.
把注意力集中在历史结果
B.
正在进行的计划实施过程
C.
在计划执行过程的输入环节上
D.
行动的结果
【单选题】现场控制工作的重点是在进行的()过程。
A.
计划实施
B.
组织工作
C.
指导与领导
D.
人员配备
【单选题】When_____home from work?
A.
do your parents come
B.
does your parents come
C.
have your parents
D.
our parents come
【简答题】Though your parents probably meant to have your name last a lifetime, remember that when they picked it they’d hardly met you, and the hopes and dreams they cared for when they chose it may not match ...
【简答题】What should you do when your parents become angry? If your     76. _______ parents got mad, try to have a conversation with them          77. _______ about it. Remembering not to shout at them. They u...
【判断题】导游是指按照条例规定取得导游证,自由为旅游者提供向导、讲解及相关旅游服务的人员
A.
正确
B.
错误
【单选题】When was it _____ your parents took you to Hangzhou?
A.
before
B.
if
C.
which
D.
that
【简答题】When your parents advise you to 'get an education' in order to raise your income, they tell you only half the truth. What they really mean is to get just enough education to provide manpower for your ...
【单选题】. When your parents haven’t ____your letter for a long time,they will worry about you.
A.
heard
B.
heard from
C.
received
D.
accepted
【单选题】数控铣床孔加工固定循环中参数K(或L)的含义是( )
A.
代表特定的平面坐标
B.
在孔底停止进给的秒数
C.
在孔底停止进给的主轴转数
D.
重复加工次数
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