已知单元体的σ1、σ2、E、μ,主应变ε1、ε2均已知，那么ε3＝？https://image.zhihuishu.com/zhs/onlineexam/ueditor/201910/66a5a29dc01441a999d5efb31bfc856f.png
举一反三
- 下列用量子数描述的、可以容纳电子数最多的电子亚层是……… （ ） A: n=4,<img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/201910/770d7ff80ba34c14835ae968265b8730.png"/>=3 B: n=2,<img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/201910/770d7ff80ba34c14835ae968265b8730.png"/>=1 C: n=3,<img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/201910/770d7ff80ba34c14835ae968265b8730.png"/>=2 D: n=5,<img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/201910/770d7ff80ba34c14835ae968265b8730.png"/>=0
- 已知逻辑函数<img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/201910/db3f3ede53184bb3a37a766a36125eab.png" /> 与其相等的函数为 ____。 A: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/201910/b9f375a5635e41d6911d97ab27bfe708.png" /> B: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/201910/bc54dac1e08f483e88b86be39ec320b1.png" /> C: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/201910/da4ddc58a62f4f35b2fe27419d3e7023.png" /> D: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/201910/9aea77b2ed814b77aed36f7301cd7625.png" />
- 已知单元体的σ1、σ2、E、μ,主应变ε1、ε2均已知，那么ε3＝？[img=290x256]17a411e6c443e3a.png[/img]
- 已知<img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/201910/c69f9920f824428ba40e2257fcb2d835.png"/>，在下列电极反应中标准电极电势为+1.36V 的电极反应是……（ ） A: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/201910/88805cc209414907ab393516f0bfe5db.png"/> B: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/201910/bc5bdf80372747b7bba2361d04d860f5.png"/> C: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/201910/f08e47c8f874416fa979efc3f9589533.png"/> D: 答案选项均正确
- 下列极限中结果等于e的是（ ）. A: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/201910/38da1b07f5c0405ea6707c9e6594b6a5.png"> B: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/201910/eb7113c864f6405080daa91020fb9b6c.png"> C: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/201910/4513ad5298554e2eb426e127192851d8.png"> D: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/201910/9f89daefa1f445e295834ce3daac84cf.png">