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31Money spent on research is almost always a good investment, even when the results of that research are controversial. 是好的投资，但有些研究有害处 1、研究的投资很值得，因为研究可以推动人类社会进步 exploration of the unknown for true answers to our questions explor solutions to enduring social problems satisfy our appetite for knowledge; help understand ourselves and the world astronomy; technology; biology; medicine ;money spent one these research projects bring even more benefits for human beings 2、尽管有些研究结果可能有争议，但也不用放弃所有这些研究 到底是否有争议在研究开始前不确定;有些研究的成果尽管可能有危害，但正确使用也可以发挥很好作用nuclear power; cloning 3、当研究目标 vague，potential benefits are speculative ，甚至对人类有危害时，投资要十分警惕 Star War; championed by Reagon admi nistration; largely a waste of moeny human cloning; give rise a number of ethnic issues chemical/nuclear weapons; demolish peaceful life and hurt thoes innocent people ISSUE31 对研究进行投资都是值得的，即使结果有争议。 | 
