题目

为保持空气的洁净、清新,下列做法不正确的是( ) A . 农民把秸秆粉碎还田,作为肥料 B . 坐私家车上班、上学,减少拥挤 C . 用天然气、电炉生火做饭 D . 植树造林,保持水土 答案:B I ________ a meeting at 4 o’clock tomorrow afternoon. [  ] A. will be having B. am having C. am going to have D. have
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