There is a new problem involved in the p

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问题选择题

There is a new problem involved in the popularity of private cars _____ road conditions need _____. [ ]

A. that …to be improved

B. which …to be improved

C. where…improving

D. when…improving

答案

答案：A

问答题

　　一位中科院院士将探望阔别二十多年的母校，并给全校师生作一场专题报告。请你代表全校学生拟一份欢迎词。要求感情真挚，言简意赅。不超过80字。

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问答题论述题

论述善治及其基本要素。