叶叶相交通
今义:运输邮电事业的总称
古义:____
下列哪组资源只要注意保护和培育就能够实现可持续利用( )。
His sister enjoys _______ tennis in her free time.
①该商品的互补商品价格下降 ②政府提高了该商品的消费税
③该商品的供应量减少 ④增加中低收入者的收入
The teacher often asks us _______ English as _______ as possible.
20分=____角 30角=____元 6元=____角