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【单选题】
听力原文：M: How are your new neighbors? W: They are wonderful people. I'm happy now. I was really tired of the quarrelsome couple that lived here before. Q: What is the woman's opinion about her new neighbors? (15)A.
She finds they are a happy couple.
B.
She is tired of them.
C.
They quarrel with some people.
D.
They are very good people.
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举一反三
【单选题】与 mlg共同组成BCR复合物的是
A.
CD19和CD21
B.
CD28和CD152
C.
CD79a和CD79b
D.
CD80和CD86
E.
CD40和CD40L
【单选题】与mlg共同组成BCR复合物的是( )
A.
CDl9和CD21
B.
CD28和CDl52
C.
CD79a和CD79b
D.
CD80和CD86
E.
CD40和CD40L
【单选题】与mlg共同组成BCR复合物的CD分子是( )
A.
CD3和CD2
B.
CD79α和CD79β
C.
CD19和CD21
D.
CD40和CD40L
E.
CD28和CD86