【单选题】按转子结构分为绕线式和鼠笼式两种的是()电动机。
【简答题】The company has witnessed some stores were shut down.
【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()
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
【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