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阅读下面材料,在空白处填入适当的内容（不多于3个单词）或括号内单词的正确形式。 BEIJING—World－renowned Oxford and Cambridge have come to China to attract top－rank postgraduate students in cooperation with the China Scholarship Council. Oxford made its first (appear) at the China Scholarship Council's annual International Graduate Scholarship Fair, opened on Saturday in Beijing. The school wants to encourage excellent Chinese students to consider Oxford can offer for their academic and professional careers. “The students (come) well－prepared with sp19．鱼在游泳时靠（　　）和尾部的左右摆动产生前进的动力．A．胸鳍B．腹鳍C．背鳍D．躯干