Mr.White is traveling around the country in the car．One evening he is driving along a road and looking for a small hotel when he sees an old man at the side of the road．He stops his car and says to the old man，“l want to go to the Baiyun Hotel．Do you know it?”

    “Yes．”the old man answers，“l'1l show you the way．”

    He gets into Mr．White's car，and they drive for about twelve miles．When they come to a small house，the old man says，“Stop here．”

    Mr．White stops and looks at the house，“But this is not fl hotel．”he says to the old  man．

    “N0。”the old man answers，“this is my house．And now I'll show you the way to the Baiyun Hotel．Turn around and go back nine miles．Then you'll see the Baiyun Hotel on the left．”

2015年8月20日，中国人民银行为宣传中国人民抗日战争暨世界反法西斯战争的伟大胜利70周年，面向国内外民众发行纪念币一套。该套纪念币（  ）

①本质是一般等价物              ②能收藏，但不能在市场流通

③是商品，能够流通              ④是货币，购买力由国家规定

开创了“开元盛世”局面的皇帝是(    )

为了解学生的体能情况，随机选取了1000名学生进行调查，并记录了他们对长跑、短跑、跳绳、跳远四个项目的喜欢情况，整理成以下统计表，其中“√”表示喜欢，“×”表示不喜欢．