求原文.我做首字母填空.开头是Many countries have studied space for more th

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求原文.我做首字母填空.开头是Many countries have studied space for more than fifty years.
没答案的啊？？？？

是这篇吧,只能在网上点击下载Word文档
Many countries have studied space for more than fifty years.In 1969,Armstrong from America first landed on the moon.Shenzhou V from China was successfully s 97 up into space in 2003,and Yang Liwei has been the first Chinese to travel in space.
Scientists believe that space research has provided many benefits（利益）for human beings.They point out that h 98 of useful things,f 99 personal computers to freeze-dried food,are closely related to space research.The k 100 of science from the sun,the moon,the planets and even our own earth is a result of space research.In a word,space research has helped a lot in protecting and developing our w 101 .
Human beings have s 102 a lot of money on space research.Even some people have devoted themselves to it.But we should also believe that space research is i 103 and it should not be stopped.Perhaps in the future it will bring more benefits that we can’t even imagine now.Moreover,just as everyone needs challenge to make their life more meaningful,we believe human beings themselves need a challenge,and we think that the peaceful exploration of space provide just such a challenge.

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