【单选题】Usually he writes in ink and writes _______ his left hand.
【判断题】所有标准操作程序及相关文件、记录应保存起来,不可存放在操作人员可涂改的作业现场。( )
【单选题】He sometimes _____ e-mails _____ his friends. [ ]
【简答题】Choose the proper collocation for each sentence and f ill in the blanks with the proper form. 1. The large print __________ easier reading. 2. Export growth has started to __________. 3. I __________ ...