抗“O”试验阳性说明（）
A.HBV感染
B.链球菌感染
C.大肠埃希菌感染
D.肠道病毒感染
E.沙门杆菌感染
参考答案：B
________ me what you wanted to know, I should not have wasted my time talking so much with you.
A．Had you told
B．You have told
C．You had told
D．Have you told
