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【单选题】
关于细胞因子的共性,下列哪项是错误的?( )A.
无 MHC 限制性
B.
特异性
C.
高效性
D.
网络性
E.
作用多样性
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反馈参考答案：
举一反三
【单选题】According to Isaac-Mohr, increased selectivity means better students are going to all colleges.
A.
Y
B.
N
C.
NG
【简答题】平键的()是工作面,靠()的相互挤压来传递转矩。
【单选题】It can be inferred from the second paragraph that ______.
A.
Isaac Asimov will make new laws to replace the old ones.
B.
the Three Laws of Robotics have been invalidated.
C.
the book I, Robot was published in Hollywood.
D.
Isaac Asimov has shifted his attention to films.
【单选题】—When did the old man die? —In 2004. He _______ for nearly ten years.
A.
died
B.
has died
C.
is dead
D.
has been dead
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