【单选题】Li Ping has worked in the company for many years. He is a .
【判断题】我国规定,车辆识别代号是由18位的字母或阿拉伯数字组成,是识别车辆不可缺少的工具。
【单选题】—Who has taken my pen away? —__________. He was here a moment ago. A. It must be Li Ping B. It is Li Ping take C. Li Ping is D. Li Ping must take
【单选题】用倾斜法铣削圆盘凸轮时,若倾角调整不精确,不仅会影响凸轮型面素线与工作轴线的平行度,还会影响凸轮的()
【单选题】—What a nice picture!But it is too small. —I'm glad you like it. I'll ask a photographer to________it. [ ]
【单选题】What a nice picture of a house!It would be___with some green trees around it.
【简答题】I have never taken a plane. My friend Li Ping, either. __________us has ever taken a plane.
【单选题】Oh, what a nice picture! You draw very well. ---________________.