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【简答题】
半径为R的均匀带电球面带电Q，如图4—20所示。求球外距球心r的点处的电场。
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反馈参考答案：
举一反三
【单选题】Her daughter was so lovely _____ little girl that everybody in the street would smile at her at ____ first sight.
A.
the; a
B.
a; /
C.
the; the
D.
/; the
【单选题】Everybody else said of her: "She is such a good mother. She adores her children."
A.
likes very much
B.
worships
C.
is considerate to
D.
takes care of
【单选题】合同中的有效期是指( )。
A.
自合同签字日起至工程师颁发解除缺陷责任证书之日止
B.
自合同签字日起至承包商提交给业主的“结清单”生效日止
C.
自合同签字日起至建设单位付清款时止
D.
自合同签字日起至竣工日止
【判断题】Waverly hated to see her mother use her to show off in front of everybody.
A.
正确
B.
错误
【单选题】My manager treats all of her _____ fairly; everybody likes working for her.
A.
judgments
B.
distress
C.
expressions
D.
subordinates
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