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单项选择题正常人血清中可有一定量的伤寒杆菌抗体,但一般范围在

A、"0"抗体<1:40,"H"抗体<1:80

B、"O"抗体<1:80,"H"抗体<1:80

C、"O"抗体<1:80,"H"抗体<1:40

D、"O"抗体<1:80,"H"抗体<1:160

E、"O"抗体<1:40,"H"抗体<1:40

  • A
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