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海量精選試題,想練就練,瞬間提分。直播
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93. Already, solar cells with efficiencies well above 6 percent have been developed using amorphous materials, and further research will doubtlessly find even less costly amorphous materials with higher efficiencies.
用非結晶體材料研制的太陽能電池的使用功效已經(jīng)遠遠超過6%,未來的研究必將找出成本更低的但功效更高的非結晶體材料。
94. This imaginary task gives some idea of the challenge facing biologists in the United States and elsewhere as they embark on a monumental project: deciphering all the coded information in the human genome, all the genes in a human cell.
美國和世界各地的生物學家面臨一項重大工程的挑戰(zhàn),這個假想的任務使人們對這個挑戰(zhàn)的強度獲得一些認識,這個挑戰(zhàn)就是:破譯人體基因組中的編碼信息。
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