28.肺瀰散量(DLco)測試使用的吸入氣體中,CO濃度約為:
(A)1%
(B)0.3%
(C)0.1%
(D)0.03%
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統計: A(111), B(1094), C(125), D(181), E(0) #927174
統計: A(111), B(1094), C(125), D(181), E(0) #927174