MODULE6
一 从下面选择合适单词,并用其正确形式填空.
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The Internet is the biggest_______of information and it is______through a computer. In 1969, DARPA _____ a way for all their computers to _____ to each other through the telephone. Then in 1984, the NSF _____NSFNET. It then became ________for universities to use the ________ a..