单选题圆面积S=πR2=π×40.042=()mm2。A5.04×103B5037C5036.6D5036.61
单选题
圆面积S=πR2=π×40.042=()mm2。
A
5.04×103
B
5037
C
5036.6
D
5036.61
参考解析
解析:
暂无解析
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