by Jason Marshall Weve now talked about three methods for calculating average values: the mean, median, and mode (affectionately known as the three Ms). So, are we done? Is that everything we could ever want to know about interpreting average values?

发表于:2018-12-07 / 阅读(72) / 评论(0) 分类 数学英语

Fish 鱼 Fish live in water and most fish breathe through their gills. 鱼生活在水中,大多数的鱼靠鳃呼吸。 They have fins, scales, eyes and a mouth. 它们有鳍、鳞、眼睛和嘴巴。 They have a body part for hearing. 它们有接

发表于:2018-12-13 / 阅读(64) / 评论(0) 分类 与美国小学生一起学英文第1册

1. quadrilateral /ˌkwɔdrəˈltərəl/ -- plane figure having four sides and four angles A square is a quadrilateral. 正方形是四边形的一种。 2. collateral /kəˈltərəl/ -- situated at the side; accompanying; parallel; additional; supple

发表于:2018-12-18 / 阅读(71) / 评论(0) 分类 突破英文词汇

This is Scientific American's 60-Second Science. I'm Steve Mirsky . Got a minute ? The 2008 Nobel Prize in physics goes to an American and two Japanese scientists for work related to symmetry in particle physics. In the early 1960s, Yoichiro Nambu of

发表于:2019-01-08 / 阅读(61) / 评论(0) 分类 Scientific American(十)月

The contract comes into effect today, we can't go back on our word now. 合同已于今日生效,我们不能反悔了 Once the contract is approved by the Chinese government, it is legally binding u

发表于:2019-01-26 / 阅读(37) / 评论(0) 分类 实用英语

Millions of voters are streaming to the polls across Myanmar in the first relatively free election in a quarter of a century. Voters had lined up long before the polls opened Sunday to cast their ballots. The chief EU election observer in the country

发表于:2019-02-04 / 阅读(57) / 评论(0) 分类 英语新闻