“当心，别落下东西”的英文译法是“（）”。 ["A、Be careful not to leave anything behind","B、Sorry to have kept you waiting","C、Be careful not to leave","D、Do not leave anything"]
“这个要水洗吗？”的英文译法是“（）”。 ["A、Is this for washing？","B、This is for washing?","C、Is this for clean?","D、This is for clean?"]
CO2气体保护焊的电弧静特性曲线是（）的。 ["上升","缓降","平硬","陡降"]
走坡
用英文表达“帮助别人的意思”（）。 ["A、May I help you？","B、Where are you？","C、Can you help me？","D、以上都对"]
约骚
