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【单选题】
关于细胞因子的共性,下列哪错误?A.
无MHC限制性
B.
特异性
C.
高效性
D.
网络性
E.
作用多向性
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反馈参考答案：
举一反三
【简答题】细菌大小的单位一般用什么单位表示?
【单选题】She is good _____ playing the piano and good ______ her students, which is good _______ the students. [ ]
A.
at; for; to
B.
to; to; for
C.
at; to; for
D.
to; at; for
【单选题】She _______ live with her parents, but she doesn’t now.
A.
used to
B.
is used to
C.
was used to
D.
has used to
【单选题】She used ___with her parents, butnow she is used to ____ with her classmates at school. [ ]
A.
live; liwing
B.
1ive; live
C.
living; living
D.
living; live
【单选题】She used to_____with her parents,but now she is used to____with her classmates. [ ]
A.
live,living
B.
live,live
C.
living,living
D.
living,live
【单选题】She in the big city, but now she in the small town with her children.
A.
used to live；is used to living
B.
used to living；is used to living
C.
used to live；is used to live
D.
used to living；is used to live
【简答题】细菌的大小一般用什么单位表示?
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