下面两图对各自形心轴y、z的惯性矩关系为（ ）。https://image.zhihuishu.com/zhs/onlineexam/ueditor/201909/f0496bc00b7e4849bad877f533b27645.png
举一反三
- 如图所示电路的逻辑表达式F=（ ）。<img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/201909/8655693a417e4e43a32e0732ed533c96.png" /> A: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/201909/beda73211aea49f082d9137fd4eb0526.png" /> B: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/201909/7388c99ee0824f20bcf85893934a2f6a.png" /> C: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/201909/9a5c81e78b344c79a9389e932a7f55ce.png" /> D: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/201909/82193a9a030243728012b02e15718987.png" />
- 如右图所示拉杆头的挤压面积为( )。<img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/201909/7ddd21a3a4e849f68c4d176b971c7c55.png" /> A: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/201909/df97de243a424ac58b1dc7cb70374683.png" /> B: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/201909/eab41cb13f55410ea57bc67fbf155a7b.png" /> C: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/201909/8c54a383f7e8426eb0f0f7c435a433ba.png" /> D: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/201909/9120d45143384f29aef7b86ea444f7f3.png" />
- 电路如图所示。则u01、u0与 uI的运算关系分别为（ ）、（ ）。 <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/201909/418adfb996644706aef30b7d2841ccb9.png" /> A: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/201909/ffe4934c2b0748428937c24c7ff16c3b.png" /> B: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/201909/1da45f59ab0845f7be8cdc1f80a78caa.png" /> C: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/201909/ca685a45d5764329b8551eb6eaeb6a58.png" /> D: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/201909/d3f91ade92954e7fbd65a917b04cc13b.png" />
- 下面描述一维束缚态的波函数有 A: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/201909/0dc6a51659af4ff6801d10031dad12e8.png" /> B: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/201909/3ab84b1e7024465d9e701a5ea032b8ee.png" /> C: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/201909/f11031c46e9649d2a247f6129ff6cfc1.png" /> D: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/201909/e42414836bd1409f8eece2f05f8ece36.png" />
- 图题分别为四个逻辑电路的状态转移图，其中不具备自启动特性的是 。 A: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/201909/ef0766a82b4a4804937a37e00828f05c.png" /> B: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/201909/a8b2df5033e445b786ea32341c45b848.png" /> C: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/201909/9e22a8ccc4864fde854abe43b5c44d92.png" /> D: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/201909/9a6e792e654f4fe4a769a0df1e2f7a64.png" />