阿摩線上測驗
1. In a cathode ray tube
(A) electrons pass from the anode to the cathode
(B) electrons pass from the cathode to the anode
(C) protons pass from the anode to the cathode
(D) protons pass from the cathode to the anode
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統計： A(0), B(1), C(0), D(0), E(0) #4041982
統計： A(0), B(1), C(0), D(0), E(0) #4041982
