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
举一反三
- 工字形截面如图所示，为（ ）。http://image.zhihuishu.com/zhs/onlineexam/ueditor/201811/03bcd53fdd9947e68039e2494aff9735.png
- 已知下列传递函数<img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201902/52a69b746f6d4543a289093c286ea763.png" />则是其能控规范形实现的为（）。 A: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201902/5cbf894bf07b4884bd0e9a8339005832.png" /> B: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201902/063b93d5e1794cc7b2e0854e9c8d16e1.png" /> C: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201902/b02c120bde7746a68c1d324058f99bec.png" /> D: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201902/48b05a371844434b84dfa6dbae612c74.png" />
- 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">
- 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
- 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"/>