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【多选题】
T、B细胞的定向分化包括A.
多能干细胞向淋巴细胞的分化
B.
多种转录因子驱动未定向淋巴细胞前体向T、B谱系的分化
C.
细胞因子信号促进T、B细胞的早期发育
D.
转录因子促进促进T、B细胞的发育成熟
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【单选题】He has been living in this country _______ since May 2012, with no visa.
A.
apparently
B.
relatively
C.
legally
D.
illegally
【简答题】Dee and Eff are major shareholders in, and the directors of, the public company, Fan plc. For the year ended 30 April 2009 Fan plc’s financial statements showed a loss of ￡2,000 for the year. For the ...
【单选题】() is the study of 'the relation of signs to interpreters' (interpreters of signs being used).
A.
Semantics
B.
Syntactics
C.
Pragmatics
D.
semiotics
【简答题】The institutions have realized that they need to change their economic concept to improve eff______ and service.
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