【判断题】不同热固性塑料的流动性不同,同一种塑料的流动性是一定的。
【简答题】设半径r=2.5,编程计算相应圆的周长、圆的面积和圆球的体积。要求:用函数scanf输入数据,计算结果取小数点后2位。
【单选题】—Can I help you? —I’d like to buy a present for my father’s birthday, at a proper price,but of good use.
【单选题】The windows were ______ high up in the walls of the castle.
【单选题】-Can I help you? -I’d like to buy a present for my father’s birthday, at a proper price but of great use.