【题目】If we had taken such effective ________ much earlier, the river would not be polluted so seriously now.
A. treasuresB. efforts
C. measuresD. actions
在线课程【答案】C
【解析】
考查名词词义辨析。句意：我们早采取这么有效的措施，这条河现在就不会被污染的这么严重了。A. treasures财产；珍宝；B. efforts努力；C. measures措施；D. actions行动。根据句意，这里要表达的是采取措施，故选C项。