第一章测试1.The heart of automobile is ( )A:bodyB:chassisC:electric systemD:engine答案:D2.( ) holds all the main components and parts together.A:chassis B:bra
In an electric car, the controller takes in hundreds volts DC, and delivers it to the motor in a controlled way. ( )答案:对Any electric car that uses batteries needs a charging sys
1.During cruise control operation, the servo controls the throttle position by changing the amount of vacuum in the servo.( )A:错B:对答案:对2.The transmission is designed for changing the spe