【B7】A．concludesB．coversC．concludeD．cover

【B7】A．makeB．printC．performD．produce

I tried to _____ for him but without success.A. cover withB. cover onC. cover upD.

【C8】A．makeB．judgeC．concludeD．prove

可负向调节T细胞活化的配对分子是A CD28/B7 B CTLA-4/B7 C LFA-1/ICA

可负向调节T细胞活化的配对分子是A CD28/B7 B CTLA-4/B7 C LFA-1/ICA

【B7】A．assistB．serveC．satisfyD．dominate