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【单选题】
可高度传染乙型肝炎的血液中含有A.
HBsAg、HBcAg、HBeAg
B.
HBsAg、抗-HBc、抗-HBe
C.
HBsAg、抗-HBs、HBeAg
D.
抗-HBe、抗-HBs、抗HBc
E.
HBsAg、抗HBc、HBeAg
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反馈参考答案：
举一反三
【单选题】which of the following is the cheapest way of travelling?
A.
travelling by train
B.
travelling by plane
C.
travelling by hichhiking
【简答题】在外文数据库检索时,遇有Fulltext链接时,说明该库可提供________。
【简答题】Modern life is impossible without travelling. The fastest way of travelling is by plane. With a modern airline you can travel in one day to places which it took a month or more to get to hundred years...
【简答题】People who like travelling have their reasons. They believe that travelling can help them expand their field of view, especially in the geographical and historical sense. They also think that touring ...
【单选题】— I think travelling by train is more comfortable than travelling by plane. —_________. In my opinion, travelling by plane is more comfortable.
A.
I agree with you
B.
I couldn’t agree more
C.
You’re right
D.
I’m afraid it isn’t
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