A.>100ng/L B.<100ng/L C.200~800ng/L D

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问题 A.>100ng/LB.<100ng/LC.200~800ng/LD.>200ng/LE.>150ng/L

选项 A.>100ng/L
B.<100ng/L
C.200~800ng/L
D.>200ng/L
E.>150ng/L

答案 B

解析
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