19（）
A: guidance
B: direction
C: control
D: management
A: guidance
B: direction
C: control
D: management
举一反三
- MEC is the short for ( ). A: Management Equipment Current B: Main Engine Control C: Main Electronic Control D: Management Engine Control
- set of are installed to control the speed and direction of the vehicle.
- In hydraulic transmission, the hydraulic control valve used to control the pressure, flow and direction of liquid is ( ). A: Power plant B: control unit C: auxiliary device D: Actuator
- The costs of control must be considered. A: traffic B: commute C: pollution D: direction
- The functions of management are ________. A: control B: directing C: planning D: organizing