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【单选题】
MHC 限制性表现于A.
NK 细胞杀伤作用
B.
ADCC 作用
C.
T 细胞对抗原的识别过程
D.
B 细胞对TI抗原的识别
E.
补体依赖的细胞毒作用CC
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举一反三
【简答题】Although the weather was very bad the buses still ran on ________. A) list B) schedule C) plan D) arrangement
【判断题】If you are to receive a visitor at the airport , you shold read his schedul beforehand
A.
正确
B.
错误
【单选题】The children _____lost in the woods; otherwise, they would have been at the lakeside camp as scheduled.
A.
must have got
B.
must get
C.
should have got
D.
should get
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