皮皮学，免费搜题
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【多选题】
存在于HBV病毒体表面的抗原成分是A.
HbsAg
B.
PreS1抗原
C.
PreS2抗原
D.
HbeAg
E.
HBxAg
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举一反三
【简答题】A．His and teammates. B．His coach and teammates. C．His family and his teammates. D．His country men and his family.
【单选题】Whom is he going with for the holiday?
A.
His family.
B.
Miss Emily.
C.
His family and the woman.
【单选题】His family____ all very kind and friendiy.His family___a happy one.
A.
are,are
B.
is,is
C.
are,is
D.
is,are
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