问题
填空题
如图所示，是A、B两种物质的熔化图像。由图可知 （填“A”或“B”）物质是晶体，该晶体的熔点是 ℃。
答案
A；80
题目分析：A物质在熔化过程中，温度保持在80℃不变，所以A是晶体，它的熔点是80℃。
搜题请搜索小程序“爱下问搜题”
如图所示，是A、B两种物质的熔化图像。由图可知 （填“A”或“B”）物质是晶体，该晶体的熔点是 ℃。
A；80
题目分析：A物质在熔化过程中，温度保持在80℃不变，所以A是晶体，它的熔点是80℃。
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