◎ 题干
If we had taken such effective ______ much earlier, the river would not be polluted           so seriously now.
A.treasuresB.effortsC.measuresD.actions
◎ 答案
查看答案
◎ 解析
查看解析
◎ 知识点
    根据n多题专家分析,试题“ If we had taken such effective ______ much earlier, the river would not be polluted so seriously now.A.treasuresB.effortsC.measuresD.actions…”主要考查了你对  【可数名词及其单复数】【集合名词】【名词】  等知识点的理解和应用能力。关于这些知识点的“档案”,你可以点击相应的链接进行查看和学习。