It is ______ to spend money in preventing illnesses by promoting healthy living rather than spending it trying to make people ______ after they are ill.A.good; goodB.well; betterC.better; betterD.better; good
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C解析有than 可知前面一个空应用比较级，因此排除AB, 根据题意第二个空也应用比较级，是生病前后病人身体健康状况的比较。