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【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:
A.
电场线的疏密程度可反映电场的强弱分布
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
C.
电场线是不闭合的
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
A.
take place
B.
have taken place
C.
is taking place
D.
taked place
【单选题】Only by imagining and creating ____the problem.
A.
can solve
B.
you can solve
C.
solve
D.
can you solve
【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
B.
电场线一定是一条向外延伸的笔直射线
C.
以上说法都不对
【单选题】关于电场线以下说法错误 的是 ( )
A.
电场线起于正电荷,至于负电荷或无穷远处
B.
电场线的疏密能定量描述电场的大小
C.
任意两条 电场线永不相交
D.
电场线中间不间断
【单选题】Peace and development remain the permanent themes of our times, _____ the world we live in is anything but quiet. [     ]
A.
and
B.
if
C.
so
D.
but
【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)
B.
电场线不相交也不相切
C.
电场线密集的地方,电场较强
D.
电场线是电荷运动的轨迹
【单选题】If what you say is not ________ with what you do, it will have a bad effect on your children. [      ]
A.
controversial
B.
consistent
C.
confident
D.
considerate
【单选题】It is futile to discuss the matter further, because __________ going to agree upon anything today.
A.
neither you nor I are
B.
neither you nor me is
C.
neither you nor I am
D.
neither me nor you are
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