Angiogenesis factor is a substance that can promote rapid healing of wounds. Tissues can be repaired by oxygen and nutrients ca

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问题 Angiogenesis factor is a substance that can promote rapid healing of wounds.
Tissues can be repaired by oxygen and nutrients carried by blood vessels.

选项 A、Right
B、Wrong
C、Not mentioned
D、A

答案见第二段最后一句"Blood vessel are essential to recovery be- cause they carry oxygen and nutrient to cells that both kill germs and repair tissues.”血管对愈合过程至关重要,因为它们可以将氧和营养物质带给细胞,以杀死病菌,修补组织。

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