设圆心在原点,半径为R,面密度为的薄板的质量为( )(面积A=) -题库考试答案搜索网

设圆心在原点,半径为R,面密度为的薄板的质量为( )(面积A=)

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2021-07-17 23:32

A、R2A
B、2R2A
C、3R2A
D、<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/1559275983806f10b150e5e69488db5418e4d15752e84image12.png"style="width:46px;height:41px;"/>

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标签：地质学专升本高数（2） 2020级第一学期期末考试期末考试城乡规划安全工程环境工程计算机网络技术高起专道路桥梁与渡河工程期末补考道路桥梁工程技术

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