卵巢癌诊断的最佳肿瘤标志物是()
A.CA19-9
B.CA125
C.CA50
D.CA153
E.CEA
参考答案:B
In China , people are supposed to ______ instead of_____.
A.shaking hands; bow
B.shaking hands; bowing
C.shake hands; bow
D.shake hands; bowing
试述肠套叠空气灌肠复位法的适应证、禁忌证及复位的鉴定。