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【单选题】
( )又称完全随机抽样,是按照随机原则,从调查总体中不加任何分组、划类、排序等先行工作,直接的抽取调查样本。
A.
简单随机抽样
B.
系统抽样
C.
整群抽样
D.
分层抽样
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参考答案：
举一反三
【判断题】应力集中是指因截面积的改变而导致该部位的应力变大。( )
A.
正确
B.
错误
查看完整题目与答案
【单选题】26 What are the author's present feelings about his or her children?
A.
Their behavior. is improving.
B.
They are approaching a difficult age.
C.
They don't spend enough time at home.
D.
They are choosing strange friends.
查看完整题目与答案
【单选题】液压传动系统中的动力元件是( )
A.
液压泵
B.
液压缸
C.
各种阀
D.
油箱
查看完整题目与答案
【判断题】液压油不是液压传动系统中的动力元件。
A.
正确
B.
错误
查看完整题目与答案
【单选题】He had confused feelings about his enemy.
A.
His feelings about his enemy were clear.
B.
His feelings about his enemy were mixed.
查看完整题目与答案
【单选题】常温内压容器内压试验压力取设计压力的()倍。
A.
1.0
B.
1.05
C.
1.25
D.
1.5
查看完整题目与答案
【单选题】常温内压容器内压试验压力取设计压力的()倍。
A.
1
B.
1.25
C.
1.05
D.
1.5
查看完整题目与答案
【单选题】Under ( ) coverage of London Institute Cargo Clauses, only major casualties are covered, but not natural calamities.
A.
ICC(B)
B.
Institute War Clauses (Cargo)
C.
ICC(C)
D.
Institute Strikes Clauses (Cargo)
查看完整题目与答案
【单选题】以下不属于顾客总成本的是_________________。
A.
货币成本
B.
时间成本
C.
精神成本
D.
营销成本
查看完整题目与答案
【单选题】She doesn't care about his feelings ______.
A.
at all
B.
in all
C.
after all
D.
above all
查看完整题目与答案
相关题目：
【判断题】应力集中是指因截面积的改变而导致该部位的应力变大。( )
A.
正确
B.
错误
查看完整题目与答案
【单选题】26 What are the author's present feelings about his or her children?
A.
Their behavior. is improving.
B.
They are approaching a difficult age.
C.
They don't spend enough time at home.
D.
They are choosing strange friends.
查看完整题目与答案
【单选题】液压传动系统中的动力元件是( )
A.
液压泵
B.
液压缸
C.
各种阀
D.
油箱
查看完整题目与答案
【判断题】液压油不是液压传动系统中的动力元件。
A.
正确
B.
错误
查看完整题目与答案
【单选题】He had confused feelings about his enemy.
A.
His feelings about his enemy were clear.
B.
His feelings about his enemy were mixed.
查看完整题目与答案
【单选题】常温内压容器内压试验压力取设计压力的()倍。
A.
1.0
B.
1.05
C.
1.25
D.
1.5
查看完整题目与答案
【单选题】常温内压容器内压试验压力取设计压力的()倍。
A.
1
B.
1.25
C.
1.05
D.
1.5
查看完整题目与答案
【单选题】Under ( ) coverage of London Institute Cargo Clauses, only major casualties are covered, but not natural calamities.
A.
ICC(B)
B.
Institute War Clauses (Cargo)
C.
ICC(C)
D.
Institute Strikes Clauses (Cargo)
查看完整题目与答案
【单选题】以下不属于顾客总成本的是_________________。
A.
货币成本
B.
时间成本
C.
精神成本
D.
营销成本
查看完整题目与答案
【单选题】She doesn't care about his feelings ______.
A.
at all
B.
in all
C.
after all
D.
above all
查看完整题目与答案
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