【简答题】使用其他工具时,按住 ________ 组合键可以快速切换到“缩放工具”。
【单选题】World Expos can _______ special in a number of ways.
【单选题】The World Expos have always served as important platforms to display ______ ideas.
【简答题】World Expos have played an important role in promoting international exchange.
【单选题】World Expos have played an important role in promoting international exchange.
【简答题】World Expos are regarded as______(aim) increase sales in Europe.
【单选题】World Expos can _________ special in a number of ways.
【单选题】World Expos have played an important role in promoting international exchange .