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4. Listening and speaking: ConversationTask 1Based on what you have heard from the conversation, complete the following sentences by filling in the blanks with proper words or phrases.[音频]1) The woman who speaks is _____1_.2) The purpose of the survey is to get opinions of _2_.3) The construction of the new shopping centerwill be finished in_3_____.

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Watch the following video. Answer the following questions.外国人都有什么奇葩中国问题？我在谷歌搜了一下“China”…_哔哩哔哩_bilibiliQ1: Why do those foreigners have thesequestions about China?Q2: Are you curious about the foreigners? What questions will you ask about them?

平行板电容器极板间电介质有漏电时,则在其介质与空间分界面处( )

A. E连续
B. D连续
C. J的法线分量连续
D. J连续

同轴电感导体间的电容C,当其电介质增大时,则电容C( )

A. 减小
B. 增大
C. 不变
D. 按
E. 的指数变化

电场能量体密度( )

A. ED
B. 1/2ED
C. BH
D. 1/2EH