发布时间:2025-02-02 22:49:05
① 一个月有4天公休。就是:2020÷25.5×3=237.65元/天
② 一个月有6天公休。就是:
2020÷23.5×3=257.87元/天
③ 一个月有8天公休。就是:
2020÷21.5×3=281.86元/天
初二物理题目 如图a所示是观察水的沸腾现象的实验装置1该装置中硬纸板的作用是
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