完形填空sugar is important to all living things.And in a r____ r

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sugar is important to all living things.And in a r____ research,scientists found that anything sweet could be used as a fuel by batteries.At a scientific meeting in Chicago,one of the researchers s_____ the new battery to the people at the meeting.It was as b_____as a postage stamp and could successfully run a calculator.
"The battery is better and much c_____ for the environment.”the researchers said in a speech."Besides,these sweet new batteries can operate three to four times longer than the general batteries thhat people u______ in mobile phones,MP3 players,iPods and many other The new battery is wonderful .Researchers said that the battery could be on s_____ in three to five years.
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