本题目来源于试卷: Physics Unit27: Early Quantum Theory and Models of the Atom，类别为 国际高中通用物理
[单选题]
In a pair of accelerating p7a2 fe w 8e o3tul28vug/jzd)clates, such as fou j9 q0d- qs.hjh wjpk66a1qvc9nd inside a CRT, the electrons are emitt9q qad-6k.jj6qp hsh9vc01 j wed
A. from the cathode which is positive, toward the anode which is positive.
B. from the cathode which is negative, toward the anode which is positive.
C. from the anode which is positive, toward the cathode which is negative.
D. from the anode which is negative, toward the cathode which is positive.
参考答案: B
本题详细解析:
暂无
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