【判断题】ECU检测到进气管绝对压力变化较转速变化的时间滞后。( )
【简答题】News report 2 Read the questions. Listen to the news report and choose the best answer to each question.
【单选题】下列关于纯净SF6气体说法正确的是( )。
【简答题】News report 2 Read the questions. Listen to the news report and choose the best answer to each question.
【单选题】The gap between those at the lowest level and those at the highest level of income had increased, and is continuing to increase.