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垂钓中:冰箱里死鱼的温度 T(t) 遵循牛顿定律: T(t) - T_a = (T_0 - T_a)\e^(-kt) 。对 ,,/min:(a) ;(b) 时?
垂钓中:冰箱里死鱼的温度 T(t) 遵循牛顿定律: T(t) - T_a = (T_0 - T_a)\e^(-kt) 。对 ,,/min:(a) ;(b) 时?
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