多项选择题 毛泽东思想活的灵魂包括:()。 A. 实事求是 B. 群众路线 C. 独立自主 D. 统一战线 E. 武装斗争

问答题 8.要求上级机关做出明确答复的文种是[填空1]。

单项选择题 A parallel-plate capacitorwith area A and separation d is filled with a dielectric medium of relative permittivity  (dielectric constant). The capacitor is being charged at a constant rate dV/dt. Here V is the potential difference between the two plates of the capacitor. The displacement current between the plates is            . A、 B、 C、 D、