两平行带电金属板1、2之间充以部分电介质，电介质的介电常数为ε 。介质与两板之间都有真空间隔。若图中描绘的箭头是电场线和电位移线，那么（ ）http://image.zhihuishu.com/zhs/onlineexam/ueditor/201908/62eba53d3dc94694b8aeb7e48f93f14d.png
举一反三
- 两平行带电金属板1、2之间充以部分电介质，电介质的介电常数为ε 。介质与两板之间...b8aeb7e48f93f14d.png
- 设http://image.zhihuishu.com/zhs/onlineexam/ueditor/201908/5f9f81d9a1184c2eb383cb81ebbe2768.png，若http://image.zhihuishu.com/zhs/onlineexam/ueditor/201908/410a0d9f8b4a4f82a6818a45f4a3b450.png，http://image.zhihuishu.com/zhs/onlineexam/ueditor/201908/637f75734cb849caa773da5377f55f5e.png，http://image.zhihuishu.com/zhs/onlineexam/ueditor/201908/29aefd40f6c54e788587a2115dd02467.png，则http://image.zhihuishu.com/zhs/onlineexam/ueditor/201908/631634fcf7854ec88eedede14de7c1de.png之间的大小顺序为（ ）<br>
- 两立体的相贯线正面投影为（ ）http://image.zhihuishu.com/zhs/onlineexam/ueditor/201908/3854501225ee41b1a6f60a9003080927.png
- 两个平面和之间的夹角是。http://image.zhihuishu.com/zhs/onlineexam/ueditor/201908/5e5358c14af94be09327703e5cce7715.pnghttp://image.zhihuishu.com/zhs/onlineexam/ueditor/201908/af5ae0cd0fcc4cdcbb23eec5cb652a80.png
- 空间两直线垂直相交的是（）http://image.zhihuishu.com/zhs/onlineexam/ueditor/201908/f2b41abdd7d54b9eb5335dbc507850fe.png