【单选题】____ talking with his Grandma, he went away without saying a word.
【单选题】--- Is Li Ming in the classroom? --- No, he there. I saw him in the reading room just now.
【判断题】加工前需检查工件是否夹紧 , 压板是否平稳 。( )
【判断题】 企业要赢得市场和客户,就要实施客户满意的营销战略。首先要培养“一切为客户”的理念,这至少包含五方面的内涵。
【单选题】I can’t find the recorder in the room. It ____by somebody.
D.
should have been taken