牛津深圳版英語七上74theworldofnumbers之三-資料下載頁
2024-12-08 04:22本頁面
【導(dǎo)讀】D÷H90°I×Numbers,245×619÷35－891＋521=?oneofthefirst. accurateandfast. represent. calculatordo?B:Itcan_________,_________,A:Whatelsecanitdo?and___________.do?A:Whatelsecanitdo?powerful. aflash. inyourwhole. _______.powerful. aflash. n.v.a.abacusestoday?fast.calculatordo?Itcanadd,subtract,multiply. squareroots.Devicalculate?lightning.doacalculation?Inaflash.problem?Aminute.wiresrepresent?ones,tens,hundreds,thousandsandsoon.
【正文】 o calculate percentages and square roots. How fast can Shakuntala Devi calculate? ? She can calculate like lightning. How long can a puter do a calculation? ? In a flash. How long did the puter take to solve the difficult problem? ? A minute. What should people do to make puters calculate? ? People have to_______________ __________________. program them with instructions What do the beads on the wires represent? ? They represent ____________ __________________________ ones, tens, hundreds, thousands and so on.
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