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【简答题】
阅读理解。 I have seven baskets. Three are big. Four are small. I have some pears and some oranges. I put two pears in each small basket, and I put two oranges in each big basket and one orange in each small basket. The number of the oranges is my age. 1. I have _______ pears. A. three B. five C. seven D. eight 2. I have _______ oranges. A. six B. eight C. ten D. eleven 3. What are those in the four small baskets? A. Nine pears. B. Nine oranges. C. Three pears and nine oranges. D. Eight pears and four oranges. 4. Where are the pears? A. Three big baskets. B. Four small baskets. C. A big basket. D. A small basket. 5. Do you know how old I am? I'm _______. A. twelve B. ten C. eleven D. nine
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高斯面上的电位移通量仅与面内的自由电荷的代数和有关
B.
高斯面上处处电位移矢量为零，则高斯面内不存在自由电荷
C.
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A.
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【简答题】As time went by, he began films. He grew more and more popular as his charming character, the little tramp, became known _ 小题1: _ ____________ the world. The tramp, a poor, homeless man with a ...
【单选题】关于电介质中的高斯定理,下列说法中正确的是[ ]
A.
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B.
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C.
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