交流伺服电机是一种()电动机。
A、三相同步
B、三相异步
C、两相异步
参考答案:C
下图是我国对农村人口的扶贫标准以及对应的扶贫对象数量的柱形图。对该图的正确解读是( )
A.扶贫对象数量的多少,标志着治理贫困成效的大小
B.扶贫对象数量的增加,实现了人人享有基本生活保障
C.扶贫标准的提高,有利于使经济发展成果惠及更多人口
D.扶贫标准的提高,促成了合理有序分配格局的形成
— Wash your hands before having a meal. Have I made myself understood?
— Sure. You _______ before having a meal. It is because of H1N1 flu, right?
— What a good boy! [ ]
A. asked to wash your hands
B. said to wash our hands
C. said to us to wash our hands
D. asked us to wash our hands