题目

Some parts of the garden are for the rest of the world to admire. Others are for you to disappear to when you don't want to be found. Of course, that's easy enough to arrange when you have lots of land with space for the kids to run round and cosy garden rooms for the adults to enjoy. But when your garden is on the small side, you might think it's a tall order. Well, you're wrong.To create a secret garden, people tend to take the routine: surrounding a small garden with high fences and then placing a lawn(草坪) in the middle and borders round the edge. Far from making the most of the area, t填上适当的单位：某同学身高160______ 教室课桌高780______ 圆珠笔芯塑料管的直径是3______．