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【单选题】
取无菌溶液时，下列哪项是不必要的（）A.
取用无菌溶液前，手要消毒
B.
检查瓶身有无裂缝
C.
核对瓶签
D.
检查瓶盖有无松动
E.
检查溶液有无沉淀、浑浊或变色
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【简答题】以下哪项不是青春期的特点
【单选题】以下哪项不是青春期的特点
A.
一般女孩的青春期开始年龄比男孩早
B.
生殖系统发育加速并渐成熟
C.
体格发育再次加速
D.
淋巴系统发育迅速
E.
青春期发育个体差异较大
【单选题】以下哪项不是青春期的特点
A.
一般女孩的青春期开始年龄比男孩早
B.
生殖系统发育加速并渐成熟
C.
体格发育再次加速
D.
淋巴系统发育于青春期前已回落至成人水平
E.
青春期发育个体差异较大
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