作为机体获得对HBV免疫力及乙型肝炎患者痊愈的指标是()
A.HBsAg(+)
B.抗-HBs(+)
C.HBeAg(+)
D.抗-HBc(+)
E.抗-HBe(+)
参考答案:B
Beijing is _____ capital of China and it is _____ city with many places of interest.
A.a; a
B.a; the
C.the; a
D.the; the
目前,沪、深证券交易所对封闭式基金交易不设涨跌幅限制。 ( )