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واکنش کدام زوج مولکول زیر با یکدیگر در سطح لنفوسیتهای T موجب مخابرهی پیام دوم فعالیت به سلول و سلولهای عرضه کننده ی آنتی ژن می شود؟
(ایمنی اهواز)
Anonymous Quiz
الف) CD28 -B7
ب) MHCHـCD4
ج) MHCI-CD8
د) MHCH Il - TCR+
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The S&P 500 slumped 1.8% on Monday and Tuesday, thanks to China Evergrande, the Chinese property company that looks like it is ready to default on its more-than $300 billion in debt. Cries of the next Lehman Brothers—or maybe the next Silverado?—echoed through the canyons of Wall Street as investors prepared for the worst.

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