还有旁边的μ能写成ru,看到这些我其实都怀疑jumping根本没有接触过高数,阿赛题目都没看过,数学就是中专水平
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[图片] /quality/70/ignore-error/1?x-oss-process=image/resize,w_225/qulity,Q_60"/>
[图片] /quality/50/ignore-error/1?x-oss-process=image/resize,w_225/qulity,Q_60"/>