题目1单选题
圆盘的质量为m,直径为D,其转动惯量理论表达式是____________A. <img src="https://tihai-oss-cloud.itihey.com/img/413632d6babe99a936d390fa0ea264a2.png">B. <img src="https://tihai-oss-cloud.itihey.com/img/a92ff772af19f33ed9f66d2cebe9c6e8.png">C. <img src="https://tihai-oss-cloud.itihey.com/img/7d6072d20eeee68df50c4f5e68b1e336.png">D. <img src="https://tihai-oss-cloud.itihey.com/img/0bf334f31d601155cac760b9c3c502e0.png">