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【单选题】
关于诊断试验,叙述错误的是A.
评价诊断试验的准确性必须与金标准进行比较研究
B.
特异性越高,则假阳性率越低
C.
对诊断试验的评价,可重复性是其重要内容
D.
诊断试验以人群为对象,力求高灵敏度,最好能发现所有的患者
E.
诊断试验阳性者一般要随之予以治疗
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【简答题】I cry easily. I cried when a boy in the film suffered from an incurable disease. I cried when an athlete brok e a world record. One night my wife and I were going to dinner at a friend ' s．As we went ...
【单选题】I don't know what illness he suffered from, but I do remember he mentioned ______ in hospital last year.
A.
to have been
B.
to be
C.
having been
D.
being
【单选题】.He suffered from a serious illness last year and I don’t know whether he is_____or dead now.
A.
living
B.
alive
C.
live
D.
lively
【简答题】非常抱歉我们不能把交货期提前。
【简答题】抱歉弄错了
【简答题】对不起,抱歉
【简答题】I don’t know what illness he suffered from, but I do remember he mentioned ________ in hospital last year. [A] to have been [B] to be [C] having been [D] being
【单选题】萃取操作中, 在溶解曲线以下的两相区,随温度的升高,溶解度曲线范围会( ),萃取效果( )。
A.
缩小；越差
B.
不变；不变
C.
扩大；越好
D.
缩小及扩大；不能确定
【简答题】很抱歉，我们不能按你们的要求装船。
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