设A=https://bgk-photo.cdn.bcebos.com/472309f790529822b5a16ba2c7ca7bcb0b46d4c5.jpg，则r(A)=________。
设A=https://bgk-photo.cdn.bcebos.com/472309f790529822b5a16ba2c7ca7bcb0b46d4c5.jpg，则r(A)=________。
发布时间：2025-08-11 11:23:37
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