摘要:第一节 单项填空(共45小题,每小题1分.满分45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.1. Beijing inched step closer to realizing green Olympics by taking series of measures to ease traffic jams and reduce pollution. A. a; the; / B. the; a; a C. a; a; a D. a; /; a

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