[生物] 問問題
A red blood cell has a 120-day life span.if an average adult has 5 L(5000cm3)
of blood and each cubic millimeter contains 5 million RBCs,how many new cells
must be produced each second to replace the entire RBC population?
答案是 2400000 可是不知道怎麼算 >0< 請大大幫忙
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