皮皮学，免费搜题
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【多选题】
不是主要介导细胞免疫的免疫细胞包括A.
NK细胞
B.
T细胞
C.
APC
D.
B细胞
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反馈参考答案：
举一反三
【单选题】The exercises are extremely difficult, but half of the class_____ them ahead of time. [ ]
A.
has already finished
B.
will finish
C.
have already finished
D.
finishes
【单选题】听力原文：Don't you think we need more time to complete this report? (A) Because it's already late. (B) Not really, we're almost done. (C) Tomorrow, if you like. (31)
A.
B.
【判断题】A facial expression or a gesture is a quick way of helping Ss to activate rules they alread y know.
A.
正确
B.
错误
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