【简答题】A loop of string of length 1 metre is formed into a rectangle with one pair of opposite sides each cm. The area enclosed by the string will be maximised when the value of equals .
【简答题】任务型阅读练习 1 A living wall or a green wall is a garden that grows vertically rather than horizontally and can exist inside or outside the home. Any welllit place inside your home makes a suitable enviro...