试题题干
efficiency的意思是（ ）
参考答案
正确答案：
试题解析
efficiency n.效率，效能，功效
例句：There are many ways to increase agricultural efficiency in the poorer areas of the world.
句意：有许多提高世界较贫困地区农业效能的方法。
efficiency的意思是（ ）
efficiency n.效率，效能，功效
例句：There are many ways to increase agricultural efficiency in the poorer areas of the world.
句意：有许多提高世界较贫困地区农业效能的方法。