— is your favorite student?
— Kangkang.
A:Who
B:What
C:How
D:How old
①快递用可降解的胶带和塑料袋包装 ②选择共享单车、乘坐公交车等方式出行
③垃圾分类回收 ④节日时大量使用纸质贺卡.
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