22 在大腸發生腺瘤腺癌的過程中,何種基因變異是最常見的早期現象:
(A) loss or mutation of APC
(B) loss of P53
(C) loss of DCC
(D) mutation of K-ras-23
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統計: A(2), B(2), C(0), D(0), E(0) #2478888
統計: A(2), B(2), C(0), D(0), E(0) #2478888