【判断题】电机降压启动的目的是为了减小电机的启动电流。
【判断题】降压启动的目的是为了减小启动电压。( )
【判断题】typedef 实际上是用来定义新的数据类型
【简答题】Unfortunately, his gambling and drinking habits make him a very person.
【单选题】Unfortunately,very few sheep the severe winter last year. A) survived B) endured C) spent D) remained alive