【判断题】在电喷发动机大多数运转工况下,喷油系统采用同步喷射,只有起动、加速等工况时采用异步喷射。( )
【简答题】She pretended not to hear, and kept on ________ (walk).
【判断题】在电喷发动机大多数运转工况下,喷油系统采用同步喷射,只有起动、加速等工况时采用异步喷射。
【简答题】自动售票机在卡票的情况下自动进入( )模式的情况
【单选题】She pretended not to hear,and keep ( ) walking.
【单选题】She pretended not indifferent but her facial expression betrayed her.
【单选题】She pretended not to see me. 该句句型结构为 。