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【单选题】
关于电场的说法（ ）A.
电场和磁场可以相互转换
B.
沿着电场线移动电荷会受阻力作用
C.
电场的传播需要介质，比如不能在水中传播
D.
只有静止电荷能产生电场，运动电荷不能产生电场
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举一反三
【单选题】The ship is positioned on a statical wave of given characteristics in a condition of _____ between weight and static buoyancy.
A.
equilibrium
B.
uniform
C.
distortion
D.
undulation
【单选题】Romani is usually used at home because______.
A.
people do not use dialects in public
B.
it needs support from the government
C.
it never appears in official documents
D.
people can only speak it but not read it
【简答题】It rained all night and all day, ______ which time the ship broke into pieces.
【简答题】郑州市“十三五”规划中“两个率先”的近期目标是什么?
【单选题】According to the article, most people read all of the following except______.
A.
the real news
B.
the sports page
C.
comics
D.
advertisements
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