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问题 判断题

只要票据关系尚未结束，票据就不能注销。

答案

参考答案：对

选择题
--- The patient looks much better.    is it that has made him      he is today?
--- Perhaps the special medicine and his family’s patient care.  
A．What; thatB．That; thatC．What; whatD．What; which
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问答题

水体富营养化
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