HBV感染最早出现的血清学标志物是
A.HBsAg
B.抗HBs
C.HBeAg
D.抗HBe
E.抗HBc
参考答案:A
Last month, part of Southeast Asia was struck by floods, from ________effects the people are
still suffering. [ ]
A. that
B. whose
C. those
D. what
为什么结构生物学在后基因组学时代具有重要地位?