对于HBV抗原、抗体的检测,哪一项是错误的()
A.用于筛选合格的献血员
B.用于乙型肝炎的诊断
C.选择治疗用药的参考
D.判断乙型肝炎的预后
E.调查人群的免疫水平
参考答案:C
下列病变因肺含气量减少而叩诊为浊音或实音的是()
A.气胸
B.肺梗死
C.肺肿瘤
D.肺包虫
E.肺气肿
I'm not sure________ next week. [ ]
A. how he comes back
B. whether he will come back
C. when will he come back
D. where will he come back