Bėłłê
2021-05-06T08:11:14+00:00
一个120kg的肥宅在电梯里,脚下踩着一个体重秤,当电梯以1m/s的速度上升或下降时肥宅脚下的体重秤读数是多少?[s:ac:晕]
Bėłłê
2021-05-06T08:11:14+00:00
detective dipshit
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