阿摩線上測驗
34. What is the purpose of the second paragraph?
(A) To explain the evolution of stem cells
(B) To argue for more research into stem cells
(C) To provide a background on stem cells
(D) To argue against more research into stem cells
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統計： A(2), B(1), C(6), D(2), E(0) #2129989
統計： A(2), B(1), C(6), D(2), E(0) #2129989
