单词：multiply periodic
单词：multiply periodic 相关文章
by Jason Marshall In the last article, Is Multiplication Repeated Addition? we talked about what it really means to multiply two numbers. We found that the conventional meaning of multiplicationrepeated additionbreaks down when multiplying fractions,
数学英语
For most of us, the periodic table is a thing of beauty in the abstract, but for chemists it established an immediate orderliness and clarity that can hardly be overstated. Without a doubt, the Periodic Table of the Chemical Elements is the most eleg
万物简史
Idea 1: Write a small but romantic love letter (about 5 lines in length or less). Then, get your local newspaper and circle all the words you need (in order) to include in your letter. Then leave the paper with a special note on top telling him to pu
英语美文
During the doctor's periodic visit to my elderly mother, I told him that Mother would be celebrating her 98th birthday in few days. Delighted by the news, he bent down and gave her a kiss for the occasion. He then announced that he, too, would be cel
趣味英语
By Derek Kilner Nairobi 08 February 2008 A delegation from the East African regional bloc IGAD has concluded a visit to Kenya to discuss the current political crisis. As Derek Kilner reports from Nairobi, recent days have seen a flurry of diplomatic
VOA常速英语2008年（二月）