【简答题】If you are not satisfied with custody and access, you can solve it by ______.
【单选题】关于电场线下列说法错误的是:
B.
电场线上任意一点的切线方向都与该点的电场强度方向相同
D.
在有一对正、负电荷的情况下,电场线不会相交,但有多个正、负电荷时,电场线就可能相交
【单选题】Great changes ___________ in my hometown over the years. A. take place B. have taken place C. is taking place D. taked place
【单选题】关于电场线下列说法错误的是
A.
在电场中画出一系列曲线,使曲线上任一点的切线方向都和该点的场强方向一致,该曲线称为电场线
【单选题】Peace and development remain the permanent themes of our times, _____ the world we live in is anything but quiet. [ ]
【单选题】关于电场线以下说法错误的是 ( )
A.
电场线总是从正电荷(或无穷远)到负电荷(或无穷远)
【单选题】Only in this way ______ solve the problem.
【单选题】If what you say is not ________ with what you do, it will have a bad effect on your children. [ ]
【单选题】It is futile to discuss the matter further, because __________ going to agree upon anything today.
D.
neither me nor you are