图示零件底盘厚度为 ，底盘上布有 个φ10的沉孔，其沉坑深度为 ，沉坑直径为 。http://image.zhihuishu.com/zhs/onlineexam/ueditor/201902/97d4f5b856bd4996bb86e3065bdd18c2.png
举一反三
- 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"/>
- 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" />
- 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"/>
- 假设面心立方晶体的晶胞参数为a，则（111）面的原子密度为（ ）。 A: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201902/868b8bc10dea4b11a7056f990d67b8ea.png"> B: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201902/29d88b05cb5b42909a7b9d27f13b8fcd.png"> C: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201902/c178174fcfcc485395dca41757c07354.png"> D: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201902/5b6326521871496ea8f698ef4da926f7.png">
- 零件上沉孔的长度方向定位尺寸正确的注法是 。http://image.zhihuishu.com/zhs/onlineexam/ueditor/201811/7dc6aab750424368bb42ad13b3fca527.jpg