【C10】A．genuinelyB．obviouslyC．presumablyD．frequently

HBV的s区基因编码产物是（)A．H：BsAgB．DNA多聚酶C．HBcAgD．Pre S1E．Pre S2

【C6】A．SurprisinglyB．ObviouslyC．PerhapsD．Although

在HTML文件中，（）标记在页面中显示work为斜体字。A.<pre>work<／pre> B.<u>work

Pre－sequences are a fundamental unit of conversational structure.（)

【C2】A．AutomaticallyB．ObviouslyC．ApproximatelyD．Subsequently

血液中不易查到的HBV抗原是( )。 A.HBsAgB.HBcAgC.HBeAgD.pre-S1E.pre-s2