The vacuum cleaner is a valuable labor-saving ______.
A: device
B: engine
C: piece
D: instrument
A: device
B: engine
C: piece
D: instrument
举一反三
- The vacuum cleaner is a valuable labor-saving ______.
- Which of the following is a household robot? A: A sweeper B: A surgery robot C: A robotic vacuum cleaner D: A robotic pool cleaner
- 词汇与结构 Engine indications are _____ on the center instrument panel by the Engine Instrument System.
- Output device is an instrument of ____ .
- 词汇与结构Engine indications are _____ on the center instrument panel by the Engine Instrument System. A: exposed B: displayed C: located D: spread