如果在闭区域D上,F(X,Y)=1,<img data-fr-image-pasted="true" width="77" src="data:image/png;base64,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" class="fr-fic fr-dii">的面积,则<img data-fr-image-pasted="true" width="23" src="data:image/png;base64,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" class="fr-fic fr-dii">等于(A )?
A、
B、
C、
D、
发布时间:2025-12-12 04:09:03