题目

根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。选项中有一项为多余选项。Jacques Rogge, president of the IOC, summed up his views on the Beijing Olympics on Sunday, speaking to the media for the final time at these Games.Rogge said the success of the Games justified the IOC’s decision to award them to Beijing.“           61           , but there can now be no doubt that we made the right choice,” Rogge said.Rogge said he was “extremely pleased” by the organization of the Games, which were highlighted by state of th若(a－2)x＋(b＋1)y=7是关于x，y的二元一次方程，则 [　　] A．a≠2B．b≠1 C．a≠2且b≠1D．a≠2或b≠－1