The death of his sister has a great ___________ on him.
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The aim of this campaign is to _____________ sportsmanship in the oncoming competition.
He is the chairman of this ___________.
The two companies have ____________ a long-term cooperative relationship.
血浆胶体渗透压主要来自
A. 纤维蛋白原
B. 白蛋白
C. 球蛋白
D. Na+
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