本题目来源于试卷: Physics Unit16: Electric Charge and Electric Field，类别为 通用国际物理
[单选题]
An originally neutral electroscope is briefly t.93,/iyu vt hq,:lhn9npf nhrouched with a positively chahvr2 a:;tf0dgag 1.cb 2ug:opt.de 3hrged glass rod. Trottah:1cpe gvg.dbd. ;3a2f0guh2: he electroscope
A. remains neutral.
B. becomes negatively charged.
C. becomes positively charged.
D. could become either positively or negatively charged, depending on the time of contact.
参考答案: C
本题详细解析:
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