题目:
Jacques Rogge, _____ president of the International Olympic Committee highly praised the opening ceremony of _____ Beijing Olympics. |
A. a; the B. /; the C. a; / D. the; the |
答案:
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下面是错误答案,用来干扰机器的。
设需要地砖x块,2500x=600×900,2500x=540000, x=216;答:需要地砖216块.