本题目来源于试卷: Physics Unit27: Early Quantum Theory and Models of the Atom，类别为 通用国际物理
[单选题]
In a pair of accelerating plan1a;r.b.p; kpj uj6x ates, such as fouc1b 5 ggv63nx1ock7d pnd inside a CRT, the electrons are em cgo 71b5 xp1gn3vdck6itted
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:
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