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【单选题】
细胞表面CD79α/CD79βA.
诱导B细胞活化，但无需TH细胞辅助
B.
产生协同刺激信号，使B细胞活化
C.
为B细胞活化的初级信号传导分子
D.
产生增强的免疫应答，分泌高亲和力抗体
E.
产生活化第一信号，需TH细胞辅助，诱导B细胞活化
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皮皮学刷刷变学霸
举一反三
【单选题】The humans are destroying nature day by day,__________of course,will cause severe punishment from it sooner or later.
A.
who
B.
when
C.
on which
D.
which
【单选题】We can infer from the passage that Jean-Marc Rapp
A.
gave full support to the Bologna process in 1999.
B.
gave credit to the European countries that joined Bologna in 1999.
C.
did not have much faith in the Bologna process at first.
D.
intended to make Bologna an inter-governmental treaty.
【单选题】The humans are destroying nature day by day,__________of course,will cause severe punishment from it sooner or later.
A.
who
B.
when
C.
on which
D.
Which
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【单选题】A place is moved from day into night and from night into day over and over by ______ of the earth.
A.
the pushing
B.
the pulling
C.
the spinning
D.
the passing
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