由惯性矩的平行移轴公式，的答案为（）。http://image.zhihuishu.com/zhs/onlineexam/ueditor/201902/714dc8766fec405ca0f739f116269480.png
举一反三
- 内外直径分别为d和D的空心圆轴，则横截面的极惯性矩和抗扭截面系数分别为（ ）。 A: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201902/3a9bd70d601a40fc986078c736ee534e.png"> B: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201902/ffa8ddd27d974b72aadfbdb98196edf4.png"> C: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201902/d4b4be29679b4e33ae4cff612d2b291c.png"> D: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201902/ff03855cb8ba4e278973e1cfc8560323.png">
- 已知串联支路为<img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201902/65b91bc067d14873a38d0c4675b53329.png"/> ， ，则其传递函数为（ ） A: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201902/8bc361d7b437451dac5c0c42c3213311.png"/> B: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201902/7db9751653e24eba9f152b6937c8c256.png"/> C: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201902/a4b7ab7e122b40068ce6b78635486bae.png"/> D: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201902/a6b34e5a8a764d5c9b78c725d7b77ed4.png"/>
- 工字形截面如图所示，水平形心轴的惯性矩的答案为（ ）。http://image.zhihuishu.com/zhs/onlineexam/ueditor/201902/e4c76b39abd7440bbc814225f2233f2c.png
- 已知<img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201902/43114282e941476ba93775909fb3f237.png"/>，用拉氏变换法求解微分方程<img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201902/0db291610cb64fa8ad46ae0bd15476b0.png"/> 的结果为（ ） A: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201902/29ff68f02bdd438bb2e16c2a6e1ec18b.png"/> B: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201902/0010c1593c9145a4b928548ab38cf426.png"/> C: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201902/1f562f2536584121b53c30e4db08df88.png"/> D: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201902/f593399cb630435192baa8b3e871b533.png"/>
- 已知系统和初始条件<img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201902/15eb73651c0a4ae094e6de902b6c21ca.png" />求初始状态激励的响应 ( )。 A: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201902/d016acd038b04b699e76c2354357c3d2.png" /> B: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201902/7a10be8f1ce74599a610fd0b9b9eb195.png" /> C: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201902/4621f442538946fdb897b89a1461e1e1.png" /> D: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201902/61b797beffc74a99b91e1934af1372fb.png" />