【简答题】He’s a very naughty boy and is always in ________ for his mischief. Adifficulty Bmisery Cpunishment Dtrouble
【单选题】我国国有经济在国民经济中的主导作用主要表现在( )。
【单选题】----What’s it that cost him the job? ----_______ experience .He was always very nervous.
【判断题】Z535 钻床调试前的准备时,将电工工具、兆欧表、万用表和转速表准备好。