Question
鱼的脑重量B与体重W的关系已经通过幂函数B = 0.007W2 / 3进行了建模，其中B和W以克为单位。体重作为体长L（以厘米为单位）的函数的模型为W = 0.12L2.53。如果在一千万年中，某些鱼类的平均长度以恒定的速度从14厘米演化到22厘米，那么当平均长度为17厘米时，该鱼类的大脑生长速度有多快？（回答您对四个有效数字的回答。）
鱼的脑重量B与体重W的关系已经通过幂函数B = 0.007W2 / 3进行了建模，其中B和W以克为单位。体重作为体长L（以厘米为单位）的函数的模型为W = 0.12L2.53。如果在一千万年中，某些鱼类的平均长度以恒定的速度从14厘米演化到22厘米，那么当平均长度为17厘米时，该鱼类的大脑生长速度有多快？（回答您对四个有效数字的回答。）
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