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【单选题】
开放性骨折要点下列哪错误的( )A.
彻底切除失去活力的筋膜、肌肉
B.
彻底清除游离碎骨片
C.
切除创缘皮肤l~2mm
D.
保留与骨膜及软组织有联系的小骨片
E.
保留未断裂的所有血管和神经
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【单选题】鸡冠花下列描述正确的是:
A.
鸡冠花是多年生草本花卉
B.
其花序为头状花序，有的象鸡冠，而有的却似凤尾，因此俗称凤尾花。
C.
鸡冠花繁殖方式为扦插，不能播种。
D.
鸡冠花的花色只有红的一种。
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