免疫球蛋白A(IgA)的正常值是A.30~80mg/dl B.20~500mg/dl C.60~200mg/dl D.600~1600mg/dl E.3~5mg

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问题 免疫球蛋白A(IgA)的正常值是

选项 A.30~80mg/dl
B.20~500mg/dl
C.60~200mg/dl
D.600~1600mg/dl
E.3~5mg/dl

答案B

解析
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