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【单选题】
关于断肢再植原则,下列哪项是错误的A.
首先进行彻底的清创
B.
可将骨骼短缩
C.
肌腱常作二期缝接
D.
主要的动、静脉均应做吻合
E.
神经应一期修复
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举一反三
【单选题】三相交流异步电动机按照转子的结构特点分为两种分别是 ( )。
A.
异步电动机和同步电动机
B.
交流电动机和直流电动机
C.
鼠笼式异步机和绕线式异步机
D.
无刷电机和他励电机
【单选题】The author easily built a team for his company because ______.
A.
they were confident of the author and his business
B.
they were turned down by other companies
C.
they were underpaid at their previous jobs
D.
they were satisfied with the salaries in his company
【简答题】三相交流异步电动机按结构分为两种,第一种是________三相异步电动机,第二种是_________三相异步电动机。 鼠笼式和绕线式三相异步电动机的定子结构完全相同,均由_________和__________组成,所不同的是转子结构不同,鼠笼式三相异步电动机转子由_________和_______组成,而绕线式三相异步电动机转子由_________和__________组成。
【单选题】下列关于普通抹面砂浆用途的说法不正确的是()
A.
用于砖墙的底层抹灰，多用石灰砂浆
B.
用于板条墙或板条顶棚的底层抹灰，多用混合砂浆或石灰砂浆
C.
混凝土墙、梁、柱、顶板等底层抹灰，多用混合砂浆、麻刀石灰浆或纸筋石灰浆
D.
在容易碰撞或潮湿的地方，不应采用水泥砂浆
【单选题】The author easily built a team for his company because______.
A.
they were underpaid at their previous jobs
B.
they were turned down by other companies
C.
they were confident of the author and his business
D.
they were satisfied with the salaries in his company
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