题目内容
32. A return ticket is often(economical)_________________than a one-way ticket.
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33. In this company, about 12 percent of the employees risked (lose)___________their jobs to informationtechnology.
34.We all have been (deep)___________impressed by Fran's understanding of the Internet of Things.
35. The Health Center provides convenient ways to schedule an (appoint)__________with its doctors.
【单选题】公路按其任务、性质和交通量分为( )个等级。
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