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【单选题】
如果将测量的目标视为射中靶心,那么可以将信度理解为射击结果一致性的函数,将效度理解为射在靶心周围点的函数,那么请问,下图表示什么意思?A.
高信度，低效度
B.
高信度，高效度
C.
低信度，低效度
D.
低信度，高效度
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【单选题】根据《中华人民共和国治安管理处罚法》规定，治安管理处罚的种类分为：（1）警告；（2）罚款；（3）行政拘留；（4）吊销公安机关发放的许可证。对于行政拘留处罚合并执行的，最长不得超过（ ）。
A.
24小时
B.
3日
C.
15日
D.
20日
【单选题】听力原文：M: Well, that was delicious! Thanks very much indeed. . . I didn't know you were such a good cook, Brenda. W: Thank you, Richard. M: If you like, I could do the washing-up. W: No, don't bother, I...
A.
He offered to get the ashtray.
B.
He offered to make coffee.
C.
He offered to do the washing-up.
D.
He offered to drive the woman to the phone.
【简答题】Interviewer: A kind of 'cross-fertilisation' I suppose. Well, thanks very much for your time, Pat._______________
【简答题】The party( )very well, thanks.
【判断题】Diaphragm valves are used to transfer a variety of slurries, corrosive or sticky substances from place to place.
A.
正确
B.
错误
【简答题】Diaphragm valves come in two designs: and . The ,or straight-through-diaphragm valve, has a flexible membrane that extendsacross the pipe. Pressure drop across the valve depends on the position of the...
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