单词：well drill bit
单词：well drill bit 相关文章
图片 by Jason Marshall Its not often someone suggests that knowing some math could make you the life of the party, but thats exactly what Im going to do. Yes, a properly timed delivery of a few fun facts about the famed Fibonacci sequence just migh
数学英语
托福阅读的考察特点是比较明显的，虽然其选文都是科普文或者其他学术性文章，但是却不考察学术概念本身，而将考察重点落脚在常见词汇以及常见表达上。有很多考生对于这一特点并不熟
新托福写作真题解析
by Jason Marshall In the last article, we began talking about mathematical sequencesin particular, a type of sequence known as an arithmetic sequence. Today, were going to turn our attention to another type of sequence called a geometric sequence. In
数学英语
By Zulima Palacio Santa Fe, New Mexico 27 August 2007 The western U.S. state of New Mexico has 19 Pueblo tribal communities, some of them among the oldest American Indian settlements in the United States. Many of them are well known for their pottery
2007年VOA标准英语（八月）
BEIJING, Feb. 24 (Xinhua) -- The reconstruction of parts of southwest China's Sichuan province, which was hit by a devastating earthquake in 2008, has been completed, the vice governor of Sichuan province announced Friday. Wei Hong, also the director
英语新闻
WASHINGTON, Jan. 28 (Xinhua) -- U.S. Secretary of State(国务卿) Hillary Clinton will visit Haiti on Sunday to focus on the island state's election standoff and reconstruction efforts, the State Department said on Friday. In addition to meeting wit
英语新闻