【判断题】喷油器、EGR阀、活性炭罐电磁阀都是执行器。
【单选题】In order to________a good knowledge of English, he gave up his job and went to Britain. [ ]
【简答题】Experience in advertising would be helpful in this job.
【判断题】喷油器、EGR阀、活性炭罐电磁阀都是执行器。
【单选题】Mr Black often drink some .
【判断题】喷油器、EGR阀活性炭碳罐电磁阀都是执行器。( )