【简答题】All over the world ,people have cut down millions and millions of trees . Did you know many kinds of animals and plants are now disappearing ? In particular , trees are very important 1. Because they ...
【判断题】电磁炉烹调器皿是材质为不锈钢或铁的平底器皿。
【单选题】已知偶函数f(x) 的图象经过(2,3) ,则函数的图象必经过另一点
【单选题】已知偶函数f(x)的图象经过点(3,2),则函数的图象必经过另一点
【简答题】雨断断续续下了一个星期。 It has been _____r_____on and off for a week.