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血小板减少可导致皮肤呈现出血性斑点,称为紫癜,其最主要原因是( )

A、血小板不易聚集成团

B、释放血管活性物质的量不足

C、不能修复和保持血管内皮细胞完整性

D、血管收缩障碍

E、延缓凝血过程

时间：2021-07-17 23:16 关键词：护理学专升本生理学期末成绩低于60分期末考试

答案解析

C

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