12.孕婦血清篩檢唐氏症之偵測率為多少?
(A)50%
(B)60%
(C)80%
(D)100%
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統計: A(2), B(5), C(6), D(0), E(0) #1043002
統計: A(2), B(5), C(6), D(0), E(0) #1043002