Physics Unit32: Elementary Particles (id: 69ec7b2a6)

admin · Post time 2024-1-22 02:15:01

本题目来源于试卷: Physics Unit32: Elementary Particles，类别为 Generic Physics

[单选题]
A particle that travels at the spej:44byb 4-eg. hd gfrss;ayi.ed of hgoi1, g*t1sclight

A. has never been observed.
B. must have zero rest mass.
C. must have a very large rest mass.
D. has infinite energy.

参考答案: B

本题详细解析: 暂无

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