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编辑点评： 以下是gre考试写作部分issue的优秀写作实例，通过这些优秀范文或是习作，考生可以借鉴里面的短语、句子或思路，给自己的写作找一些思路和灵感。 Money spent on research is almost always a good investment, even when the results of that research are controversial. 正文： I fundamentally agree that research is an area deserving long-term investment and this point should not be suspected by whether the results of that research are controversial. But by arguing that money spent on research is almost always a good investment, it seems to go to extreme: it ignores some critical factors that may cause the investment to become an inefficient and even completely failed one. Research, especially research about fundamental theory, discriminates itself from other activities primarily by the uncertainty and controversy of its results. No one can boast that his/her research is certain to succeed. Also on one should expect that his research results would not be suspected or even violently defied by his/her fellows. However, this character of research does not inhibit its great utility to the whole society. Instead, to a great extent, it is just because this kind of suspecting and disputing each other that technology, science and society stride forward. Not only the society as a whole but also a competitive firm, primarily thrives on the breakthrough in these meaningful controversies. Undoubtedly, whether the results of research are controversial does not affect its becoming the most profitable and provident area deserving long-term investment at all. | 
