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
.I tried to call on you last week but your dog simply ____ not let me come through the gate.
A.could
B.would
C.might
D.should
肺癌中恶性程度最高的类型是
A.鳞癌B.腺癌C.小细胞癌D.大细胞癌