加速断开装置在汽车超车时,断开电磁离合器电路,压缩机停止工作6秒。
查看答案
自动空调通过功率晶体管实现对鼓风机的无级调速。
A. 对
B. 错
自动空调鼓风机的转速快慢只能人工开关调节。
A. 对
B. 错
1.Which is wrong about usage of your napkin in dinner?
A. Lay it on your lap.
B. Use it to wipe your mouth.
C. Wait for your host to use the napkin first.
D. Tie it around your neck or collar.
1.How do you put your knife and fork after dinner?
A. Cross them on the plate.
B. Lay them on the plate parallel.
C. Put the fork with its pointed side up and the knife its sharp side towards other guests.
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