题目

描述气候特征的基本要素是( ) A . 降水和湿度 B . 气温和降水 C . 气压和气温 D . 湿度和气压 答案:BThe bridge, which __________ 1688, needs repairing. A. is dated from                         B. was dated from C. dates from                           D. dated from  
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