发布时间:2025-01-16 18:01:23
占地面积=底面积=长×宽=5×3=15平方米
展开面积=表面积=2×(长×宽+宽×高+长×高)=2×(15+20+12)=94平方米
我八月份买的九阳料理机a100 一直没有用过拿出来用怎么一点反应也没有呢急求答案
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