本题目来源于试卷: Physics Unit30: Nuclear Physics and Radioactivity，类别为 通用国际物理
[单选题]
Cloud chambers have been r xmm8ur 4xc2q/eplaced by bubble chambers-us,ufar o7sjvlt:0b9 8xp7u2rgw1 k because
A. the radioactive clouds were too dangerous to work with.
B. the density of fluids is greater than the density of vapors.
C. bubble chambers tend to be larger and more expensive.
D. gamma rays are visible in bubble chambers, but not in cloud chambers.
参考答案: B
本题详细解析:
暂无
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