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【单选题】
一均匀带电球面,电荷面密度为 s ,球面内 场强 处处为零,球面上面元 d S 带有 s d S 的电荷,该电荷在球面内各点产生的场强A.
处处为零
B.
不一定
C.
处处不为零
D.
无法判定
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皮皮学刷刷变学霸
举一反三
【判断题】Edgar Allan Poe is the first American author who formalized the technique of the short story, in pursuit of the totality of effect through compression, immediacy, verisimilitude, and finality.
A.
正确
B.
错误
【简答题】Divide TextA,Unit1 into four parts and write down your answer here.
【简答题】Answer: HereA. Here
【单选题】When we speak of the Old English prose, the first name that comes into our minds is_______, who is the first scholar in English literature and has been regarded as father of English learning.
A.
William Shakespeare
B.
Beowulf
C.
Julius Caesar
D.
Venerable Bede
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