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【简答题】
在利用PSTN和MODEM上网的拨号上网系统中,DTE是指__,DCE是指__。
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【简答题】Scientists declared that the discovery could not only _________ Einstein’s theory of relativity but also add to their understanding of the universe. (validate)
【简答题】Scientists declared that the discovery could not only ____ Einstein’s theory of relativity but also add to their understanding of the universe. (V)
【简答题】Scientists declared that the discovery could not only Einstein’s theory of relativity but also add to their understanding of the universe.
【简答题】The scientists declared that there are only eight planets in the solar system.
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