完形填空sugarisimportanttoalllivingthings.Andinar____research,scientistsfoundthatanythingsweetcouldbeusedasafuelbybatteries.AtascientificmeetinginChicago,oneoftheresearcherss_____thenewbatterytothepeopleatth
完形填空
sugarisimportanttoalllivingthings.Andinar____research,scientistsfoundthatanythingsweetcouldbeusedasafuelbybatteries.AtascientificmeetinginChicago,oneoftheresearcherss_____thenewbatterytothepeopleatthemeeting.Itwasasb_____asapostagestampandcouldsuccessfullyrunacalculator.
"Thebatteryisbetterandmuchc_____fortheenvironment.”theresearcherssaidinaspeech."Besides,thesesweetnewbatteriescanoperatethreetofourtimeslongerthanthegeneralbatteriesthhatpeopleu______inmobilephones,MP3players,iPodsandmanyotherThenewbatteryiswonderful.Researcherssaidthatthebatterycouldbeons_____inthreetofiveyears.
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