加法消去律, 加法消去定律

EXPLORATIONS - Outlaws and Lawmen of the Wild West, Part 2

EXPLORATIONS - Outlaws and Lawmen of the Wild West, Part 2 By Paul Thompson Broadcast: Wednesday, January 21, 2004 (THEME) VOICE ONE: I'm Shirley Griffith. VOICE TWO: And I'm Steve Ember with EXPLORAT

发表于:2018-12-01 / 阅读(127) / 评论(0)

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数学英语 33 Is Multiplication Repeated Addition?

by Jason Marshall In past articles weve talked at length about three of the big four traditional processes used in basic arithmetic: addition (see also How to Add Quickly), subtraction, and division. However, for one reason or another, we havent yet

发表于:2018-12-07 / 阅读(43) / 评论(0)

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VOA慢速英语2014 AS IT IS 2014-02-12 A Turkish Law Raises Questions About Government and the Internet 法律人士质疑土耳其政府对互联网的管制

AS IT IS 2014-02-12 A Turkish Law Raises Questions About Government and the Internet 法律人士质疑土耳其政府对互联网的管制 Welcome to the VOA Learning English program, As It Is! Im Mario Ritter in Washington. Today we explore the iss

发表于:2018-12-16 / 阅读(38) / 评论(0)

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数学英语 24 What is the Commutative Property of Addition?

by Jason Marshall Weve spent the last few articles building our numerical vocabulary from the ground up. Today, were going to talk about something that sounds hard, but is actually pretty easy...and very useful too: the commutative property of additi

发表于:2019-01-02 / 阅读(112) / 评论(0)

数学英语

英语笑话听力+文本：Cancellation of love 爱情退订

[00:15.11]Cancellation of love 爱情退订 [00:29.01]词汇扫描 [00:32.66]pull over [pul][b?k] 靠边停车 [00:36.21]英文原文 [00:38.07]Just as my husband pulled his delivery van away from the florist, [00:41.93]the manager came running out.

发表于:2019-02-15 / 阅读(36) / 评论(0)

英语笑话（MP3+文本）

CCTV9英语新闻：Supply-side reforms need 'subtraction & addition'

China's State Council Information Office has held a policy briefing conference, and Huang Shouhong, who is in charge of the drafting of the Government Work Report, underlined the key methods of supply-side reforms. From the industry level, supply-sid

发表于:2019-02-25 / 阅读(90) / 评论(0)

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