抗链“O”抗体属于（）。
A.IgM
B.IgG
C.IgD
D.IgA
E.IgE
参考答案：B
— I need some money, what should I do?
— __________________ .
A．You should get a part-time job.
B．You should say sorry to your mother.
C．You should get a tutor.
D．You should join a club.
关于结肠正常影像，下列描述哪项欠妥（）
A.结肠黏膜有纵、横、斜3种方向
B.升结肠的结肠袋比降结肠明显
C.左半结肠黏膜皱襞以纵向为主
D.左半结肠比右半结肠粗
E.低张双对比造影可显示无名沟
