食物调料中八角的主要成分是莽草酸（C7H10O5），莽草酸是白色粉末，气味辛酸，易溶于水，难溶于氯仿、苯和石油醚，熔点185℃～l 87℃；具有抗炎、镇痛等作用．根据上述信息回答问题：写出莽草酸的一条

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食物调料中八角的主要成分是莽草酸（C₇H₁₀O₅），莽草酸是白色粉末，气味辛酸，易溶于水，难溶于氯仿、苯和石油醚，熔点185℃～l 87℃；具有抗炎、镇痛等作用．根据上述信息回答问题：写出莽草酸的一条物理性质：____

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莽草酸是白色粉末，气味辛酸，易溶于水，难溶于氯仿、苯和石油醚，熔点185℃～l87℃

Lucy	I like sports. I have ten tennis balls, seven basketballs, four volleyballs and five soccer balls. I play tennis with my friends every day.
Mary	I have five baseballs, five volleyballs, two soccer balls. I like ping-pong. It's easy for me. I often play ping-pong with my classmates. I also have three ping-pong bats and lots of ping-pong balls.
Alice	I don't have any balls. I love sports, but I don't play them. I only watch them on TV.