药毒发病有一定的潜伏期，第一次发病多在用药后（）日；重复用药

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问题填空题

药毒发病有一定的潜伏期，第一次发病多在用药后（）日；重复用药常在（）内发病，短者甚至在用药后瞬间或数分钟内发病。

答案

参考答案：5～20｜24小时

选择题

— Which do the young people prefer, music or sports?

— Both. Music is _____ sports among them. [ ]

A. as popular as

B. not as popular as

C. more popular than

D. less popular than

问答题简答题

简述中国博物馆当前发展现状，并评述其存在问题及其发展对策。