10.一带电粒子从电场中的a点运动到b点径迹如图中虚线所示不计粒子所受重力则 A.粒子带正电 b.粒子加速度逐渐减小 C.a点的场强大于 Template




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tomski10.一带电粒子从电场中的a点运动到b点径迹如图中虚线所示不计粒子所受重力则 a.粒子带正电 b.粒子加速度逐渐减小 coloring