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BMAT考试：科学知识与应用练习
Two rods, X and Y, are made from differentelectrically insulating materials. A student rubs rod X, which is initiallyuncharged, with a cloth, then holds it near to rod Y. The two rods repel eachother.
Which statement explains why repulsion occurs inthis experiment?
A Rod Xgains electrons from the cloth and rod Y is positively charged.
B Rod Xgains electrons from the cloth and rod Y is uncharged.
C Rod X gains protons from the cloth and rod Yis negatively charged.
D Rod Xgains protons from the cloth and rod Y is positively charged.
E Rod X loses electrons to the cloth and rod Yis negatively charged.
F Rod X loses electrons to the cloth and rod Yis positively charged.
G Rod Xloses protons to the cloth and rod Y is negatively charged.
H Rod Xloses protons to the cloth and rod Y is uncharged.
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