摘要:第一节:单项填空(共10小题.每小题1分.满分10分) 从A.B.C.D四个选项中.选出可以填入空白处的最佳选项.并在答题卡上将该项涂黑.21.In the present economic times, more and more effective of automatic control is widely used in the office. A.technique B.telegraph C.machinery D.procedure

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