单位体积中发出的电通量是（ ）
A:
B:
C:
D:
A:
B:
C:
D:
举一反三
- 已知主视图和俯视图，下面左视图画法正确的是（ ）<img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/202001/f377a414c37f4fa6abc2f9b04f1813f9.png" /> A: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/202001/374606d5e64c402a80fa6c26413e03d7.png" /> B: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/202001/ab424a298c214c678e3c992cc13f1240.png" /> C: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/202001/1a492c119c654bc08fe36a7ceb5356a1.png" /> D: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/202001/7987482d74ee4b8496cd51b67058d905.png" />
- 已知主视图和俯视图，下面左视图画法正确的是（ ）<img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/202001/1e0aaa3cb30843c7b0eeb71e55511934.png" /> A: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/202001/9910f2c5c40d4ba8859276f50ed59490.png" /> B: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/202001/c2065fbfc03e4168868ef9c9a2e45b89.png" /> C: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/202001/5a360d8d05374f619e3a3b0429166843.png" /> D: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/202001/9c9f7f3b64bb493192f6942810efbb5a.png" />
- 已知主视图和俯视图，下面左视图画法正确的是（ ）<img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/202001/ab775b13eca04758be7bda6482f67d14.png" /> A: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/202001/2e4e4d84253748b3a1bbffe481957c9d.png" /> B: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/202001/77d9ccb384a6473486fee4d73e43f758.png" /> C: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/202001/cab39ada23044c3aa629c82f3b900118.png" /> D: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/202001/a334642b1f8c431496117786dcb902bd.png" />
- 已知主视图和俯视图，下面左视图画法正确的有（ ）<img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/202001/f57e282ec8344939aab92083cf698aa3.png" /> A: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/202001/f44520b53c4b465f8edf47f895c84342.png" /> B: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/202001/473a5b3bff8e42778f547d8f6459fc03.png" /> C: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/202001/c5763dcd97a64f9c83ae99f6f835a253.png" /> D: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/202001/d8bf1f79dafb45608d2b0147768e3497.png" />
- 已知主视图和俯视图，下面左视图画法正确的有（ ）<img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/202001/37b9340df9f14b5aafd09e9cd8dd9417.png" /> A: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/202001/34c1ef90f86e4d24b07813c2626acb4a.png" /> B: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/202001/1f61cf2a2abb459686be857cc1896cfc.png" /> C: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/202001/e62472499e084b65b9cd88617dbeff53.png" /> D: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/202001/7dd5774028544750a15a7823aa444d1f.png" />