阿摩線上測驗
34. How many nephrons can possibly exist within a normal adult kidney?
(A) two hundred
(B) one thousand
(C) more than a million
(D) fewer than a hundred
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統計： A(9), B(10), C(540), D(5), E(0) #1814845
統計： A(9), B(10), C(540), D(5), E(0) #1814845
