【单选题】 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
【单选题】 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