题目内容

试述MHCⅡ类分子途径提呈外源性抗原的简要过程。

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This achievement was done when most TV shows were filmed live.

A. gross
B. groundbreaking
C. grounding
D. groundless

He his head from the sun with an old sack.

A. shielded
B. sheltered
C. shifted
D. shoved

They hope for a chance to their land and their dignity.

A. recline
B. recycle
C. recompense
D. reclaim

They were interested you told them.

A. all that
B. in which
C. in everything
D. in that

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