【简答题】He is keen __ all kinds of alcohol—beer, whisky, and so forth.
【简答题】He is keen _____ all kinds of sports.
【判断题】G92指令一般放在程序第一段,该指令不引起机床动作
【简答题】Heis keen __ all kinds of alcohol—beer, whisky, and so forth.A. about B. for C. in D. on
【判断题】G92指令一般放在程序第一段,该指令不引起机床动作