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【单选题】
梁的截面宽度不宜小于( )mm。A.
200
B.
150
C.
250
D.
300
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举一反三
【判断题】According to the text, factorial designs are the most common statistical designs.
A.
正确
B.
错误
【单选题】It is Sunday today. It is lovely weather we want to spend the day on the beach.
A.
such a; that
B.
such; that
C.
such; as
D.
so; that
【简答题】阅读短文，判断句子正误，正确的写T，错误的写F。 Save Money by Understanding Why You Spend It To save money, you simply need to spend less than you earn. It is easy to say, but why is' it so difficult to do? To answer this q...
【判断题】"Doesn’t it make sense to spend some time in the company of the humanities, our outstanding and remarkable treasure of knowledge?" (Para.10) This sentence means: It is unreasonable to spend some time ...
A.
正确
B.
错误
【单选题】Large, representative samples are used to collect data that are analyzed with statistical techniques for which of the following types of research designs?
A.
subjective research
B.
exploratory research
C.
conclusive research
D.
observational research
E.
supporting research
【单选题】根据IMDG Code下列关于危险货物包装模拟试验的说法正确的是( )
A.
所有设计承装液体或固体的包装必须进行液压实验
B.
所有设计承装液体或固体的包装必须进行气密试验
C.
所有设计承装危险货物的包装必须进行堆码试验
D.
进行跌落试验时,除平面跌落外,包件重心必须垂直通过撞击点
【判断题】Statistical designs allow for the statistical control and analysis of external variables.
A.
正确
B.
错误
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