问题
选择题
人间四月芬芳菲，春天校园百花开，阵阵花香，沁人心脾。花香四溢的现象说明
A．分子是由原子组成的
B．分子之间有一定的间隔
C．分子是不断运动的
D．分子具有一定的质量
答案
答案：C
分子运动才能四处扩散，故花香四溢的现象说明分子是不断运动的，C正确，本题选C。
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人间四月芬芳菲，春天校园百花开，阵阵花香，沁人心脾。花香四溢的现象说明
A．分子是由原子组成的
B．分子之间有一定的间隔
C．分子是不断运动的
D．分子具有一定的质量
答案：C
分子运动才能四处扩散，故花香四溢的现象说明分子是不断运动的，C正确，本题选C。
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