摘要:第一节:单项填空(共15小题,每小题1分.满分15分)21. The Shengzhou VI aircraft carried two astronauts into sky at 9:00 am on October 12, 2005 and the two astronauts will stay in space for five days. A. a; the B. the; 不填 C. the; the D. a; 不填

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