Unfortunately,theresearchwaslimited__________increasingeconomicprofits,___

Unfortunately, the research was limited __________ increasing economic profits, _________ protecting the environment.A.to; other thanB.by; rather thanC.to; rather thanD.by; more than

C解析试题分析：原句意思，不幸的是，这份研究局限于提高经济利益，而非环保。be limited to 局限于 other than 不同于rather than 而不是 more than 多于，故选C。考点：常见固定词组辨析。点评：解答此类题型要先理解题干要表达的意思，再分析各个选项中词组的词义，从中选取适合语境的一个。在平时的学习中，要重视对词组的总结和记忆。

好好学习下