【简答题】Practice 3-Part 1.doc Answer Sheet.doc
【简答题】unit 1 -Part 1 作业.doc
【单选题】Was it a he or a she(Paragraph 2) may be replaced by
B.
Who was the person who wrote it.
C.
Did he or she write it.
D.
Was it written by a man or a women.
【判断题】系统误差中含有常值系统误差和变值系统误差两种。
【简答题】Unit 3 Part 1 - 副本.doc