项目分析的判别指标中，最常用的是临界比值法(critical ration)，此法又称为极端值法。分析时先将测验总分加总，再依其得分高低排序，选前27％为高分组，后27％为低分组，再求高低两组在每个题...
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Critical ration for difference 临界比率
critical void ration 临界孔隙比
critical flammability ration 临界抑爆比
critical transference ration 临界转移比
critical flammability ration cfr 临界抑爆比
minimum critical heat flux ration 最小临界热通量比
Conditions in the camps are no longer so critical, but there are too few toilets, and some have to queue five or six hours for their daily ration of water.
难民营的条件已有所改善，但厕所数量太少，有时甚至会排5至6小时队来获取每日定量配给的水。
If you know from experience that you are the over-anxious type, it is critical that you a fixed ration of time every day for relaxation.
如果你从经验中知道你是过度焦虑型，对你来说每一天分配固定比率的放松时间的很重要。
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