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摘要： Expanding RodsTime Limit:1000MSMemory Limit:30000KTotal Submissions:10901Accepted:2802DescriptionWhen a thin rod of length L is heated n degrees, it expands to a new length L'=(1+n*C)*L, where C is the coefficient of heat expansion.When a thin rod is mounted on two solid walls and then heated, i 阅读全文