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[A] leg[B] foot[C] face[D] eye[E] nose[F] mouth[G] arm It’s the part of the body used to stand on and walk on.
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委托调查是指通过互联网等媒介搜寻有价值的资料并展开调查。( )
Christmas is coming. It is celebrated(庆祝) every year on December 25 and it is the most celebrated holiday in the world. It is celebrated in Europe, North America, South America and in every country that has been touched by western culture. Christmas celebrates the birth of Jesus Christ. Today, most people who celebrate Christmas are not Christians(基督徒). They celebrate the holiday because Christmas is an opportunity for people to show the "good feelings" they have for each other. Christmas is called "the season of giving". It is the time of year when people give gifts to others to show how much they love them or just to show how much they appreciate(感激) them. We give gifts to our family and we also give gifts to close friends. Many people also give gifts to people who have performed services for them through the year, like the postman or the cleaner. And Christmas is the time of year we remember that many people are less fortunate than us: the poor, the sick and the lonely; and we try to help them in any way we can. Christmas is the time when we try our best to help the poor, the sick and the lonely.
在Windows中，要弹出某文件夹的快捷菜单，可以将鼠标指向该文件夹，然后按______键。
在面向对象技术中，一个子类的对象同时又属于父类，它继承了父类的一切属性，这种多态性称为 (39) 。同一个算子在不同的表达式中可能有不同的操作意义，这种多态性称为 (40) 。编译程序根据上下文判定算子的操作意义，这称为 (41) 。
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