寒冷天气，如果放水，未立即勤务加水，则需要拔出哪些跳开关？（）
A. WATER HEATER
B. POT WATER COMPRESSOR
C. WATER QTY IND
D. 都需要
不少人退休后会有失落感，我们应该帮助、关心他们（）
A. Some worry that robots will one day become the dominant force in the world.
B. Many people will have a sense of loss after retirement. we should help. care for them.
C. With the recent increase in violent crime. the government will certainly respond.
D. I remember living in the country very happy when I was a child. where flowers bloom in spring
虽然我痛恨这么做，但是我必须按计划完成任务（）
A. Whatever happens. we will make every effort to overcome it.
B. That means the new law also applies to private enterprises.
C. Although I hate doing so. I have to finish the task as planned.
D. Without the constant concern of both sides. the friendship will end in a breakup
人工V/S控制拨动开关在UP（上）位时活门移向（）
A. 开位;
B. 关闭位;
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