单词：prenex disjunctive normal form
单词：prenex disjunctive normal form 相关文章
Today's topic is active voice versus passive voice. Here's Brian from Iowa: It drives me crazy when people write in passive voice. How can I teach people how to tell the difference between passive and active voice and stay away from passive voice? Th
英语语法 Grammar Girl
nod----------点头 navel-------- 小说 North-------北方 normal------正常的
用听的背单词-基础2000MP3(h-z)
A: I was wondering if you have my test results in. B: I didn't see anything out of the ordinary, but I want you to log onto our website for a printout of all of the details. A: So, basically, I am OK? B: If there were any major problems, I would alwa
健康-Health
《英语流行话题阅读:语境识词3500》Unit 16 什么是癌症?
英语语境识词
Kleenex is a brand name for facial tissues, bathroom tissue, paper towels, and diapers. The name Kleenex has become a noun in many dictionaries, meaning a facial tissue, whatever the brand. The Kimberly-Clark Corporation created Kleenex tissues in 19
各大品牌英文介绍
[Note: I originally covered this topic September 16, 2006. The transcript you see now on the page is a new version that was updated March 5, 2009. Some of the reader comments at the bottom relate to the earlier version.] Grammar Girl here. Today's to
英语语法 Grammar Girl
Economics Report - Greece Struggles to Form Government, Unsure about Reform 经济报道 - 希腊进入第三轮组阁尝试 改革前途未卜 This is the VOA Special English Economics Report. 这里是美国之音慢速英语经济报道。 The Oly
2012年VOA慢速英语(五)月
New Ebola Vaccine Proves Effective in Mice U.S. scientists have developed a new vaccine against the deadly ebola virus which has the potential to remain potent after years of storage. Ebola is one of the deadliest viruses known. It kills about nine o
VOA标准英语2011年(十二月)
Donetsk Residents Anxious for Return to Normal Life 顿涅茨克居民渴望重返正常生活 DONETSK, UKRAINE Away from the two government buildings being held by pro-Russian separatists, normal life goes on in the eastern Ukrainian city of Donetsk
VOA标准英语2014年(五月)
A: Hi, I was wondering if you have my test results in. B: I didnt see anything out of the ordinary, but I want you to log onto our website for a printout of all of the details. A: So, basically, I am OK? B: If there were any major problems, I would a
英语情景对话-健康
A: Hi, I think I was supposed to call for my test results today. B: If you go onto our website and put in your password, you can access your test results. A: Are you saying that there werent any problems? B: I will always have you come in for a discu
英语情景对话-健康
A: Hello, could you tell me my test results? B: Your results are posted on the website. Just put in your password and you can see the exact numbers. A: Are you saying that all my results were normal? B: We always contact you by phone to come in if th
英语情景对话-健康
A: Can you help me pick out a gift for my niece? B: Most normal little girls go wild over Barbie dolls. A: That sounds good. Let me see one. B: Here's the latest modelDigital Barbie. A: Oh, she's nice. How much is she? B: Why, she's only $29.95. A: W
购物英语对话
By Barry Unger Washington, DC 09 June 2006 watch Cancer report A pair of studies has discovered a connection between younger black women and a more aggressive form of breast cancer. The disease is affecting black women in both Africa and the United
2006年VOA标准英语（六月）
Are you a normal person？ 你是正常人吗？ During a visit to the mental asylum, a visitor asked the director ..., What is the criterion that defines a patient to be institutionalized? Well... said the director, we fill up a bathtub, and we offe
趣味英语
Activist helps US HIV law change UK activist has spoken about his role in pushing the US government to overturn a law which bans people with HIV from visiting the country. Paul Thorn, 38, an expert on HIV and TB, was stopped from speaking at the Pac
英语新闻
By Sarah Williams 08 October 2009 This winter in the United States will be colder than normal. That's what the classic American publication the Old Farmers's Almanac is predicting. We expect heavier than normal snow in the Intermountain region, whic
VOA标准英语2009年(十月)
Anchor: British Prime Minister David Cameron is painting an optimistic future for the country, calling on the people of the UK to show their resolve in a time of challenge. As CRI's UK correspondent Tu Yun reports, Cameron's comment comes following w
世界各地新闻集锦
Are you a normal person？ 你是正常人吗？ During a visit to the mental asylum, a visitor asked the director ..., What is the criterion that defines a patient to be institutionalized? Well... said the director, we fill up a bathtub, and we offe
英语笑话（MP3+文本）
What's that loud, droning noise? Is it a telephone? Or maybe a pigeon? No, it's Smokey. This English cat might soon be named the world's loudest purrer after she made an official attempt at a world record. Smokey's strident purr was recorded as being
英语听力精选进阶版