Physics Unit27: Early Quantum Theory and Models of the Atom (id: dbc6b4b40)

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]
The part of an electron microscope that plays the same roy fch1m8/-z xyla*gvo jqb0n -7 venh+8e as the lenses do in an oph0* n8-jeaq nvbgvo+7 tical microscope is

A. the vacuum chamber.
B. the coils.
C. the cathode.
D. the deflector plates.


参考答案:  B


本题详细解析: 暂无

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