二次曲面的切线锥面

Grasp the 1) cone with the right hand firmly but gently between thumb and at least one but not more than three fingers, two-thirds of the way up the cone. Then 2) dart swiftly away to an open area, aw

发表于:2018-11-28 / 阅读(192) / 评论(0) 分类 疯狂英语2002年

A: What a nice day! B: Im glad we decided to walk today. A: I agree. B: I cant believe how clear the sky is right now. A: I know, and look how pretty those roses are. B: You can tell its springtime. A: The flowers are blooming so beautifully this yea

发表于:2018-12-02 / 阅读(68) / 评论(0) 分类 英语情景对话-邻居

Historic US Court Case Inspired Equal Rights for Both Genders Reed v Reed is a U.S. Supreme Court case many have never heard of. Yet, it triggered the landmark 1971 decision that declared it unconstitutional to discriminate against a woman solely bec

发表于:2018-12-08 / 阅读(71) / 评论(0) 分类 VOA标准英语2011年(十一月)

[00:00.00] Unit 4 In my classroom [00:05.20]A Point and say. [00:09.56]Look at the board.Eleven,twelve,thirteen,fourteen,fifteen. [00:29.34]Sixteen,seventeen, eighteen,nineteen, twenty. [00:43.39]Look at the board.Eleven,twelve,thirteen,fourteen,fift

发表于:2018-12-12 / 阅读(112) / 评论(0) 分类 小学英语(深港版)第三册

It's been tried all over the world, and teachers sort of stand back and say, It just happens by itself? 在世界各地尝试过,老师们后退着说:它就这么自己发生了? And I said, Yeah, it happens by itself.How did you know that? 我说

发表于:2018-12-19 / 阅读(88) / 评论(0) 分类 TED演讲教育篇

Textalyzer Aims at Deadly Distracted Driving 能够测试驾驶时是否分心的神器 Fifty years ago, British inventors made and marketed the first electronic breathalyzer. The alcohol gauge has become standard issue for U.S. law enforcement crack

发表于:2018-12-24 / 阅读(76) / 评论(0) 分类 2017年Scientific American(八)月

It sucks. In certain circumstances, it might be the right thing to pull a talk. 这真不怎么样。有时候,要求取消某个讲话的理由是正确的 But it seems most of the time its overreactions by security vendors who dont understand. It

发表于:2018-12-28 / 阅读(78) / 评论(0) 分类 创业成功人士访谈录

Equal Pay Day is an American day of awareness to highlight the fact that American men earn more than women for doing the same jobs. It is held on April 15 because this is how far into a new year that a woman must work to earn what a man earned in the

发表于:2018-12-29 / 阅读(127) / 评论(0) 分类 英语课程学习计划和讲义

Report: Women Farmers Denied Equal Rights A humanitarian group says if women farmers had the same rights as men much more could be done to reduce world hunger. Bread for the World says equal access to agricultural resources would help ensure food sec

发表于:2019-01-13 / 阅读(102) / 评论(0) 分类 VOA标准英语2012年(三月)

Larry和李华刚刚忙完手头的工作。他们一起去吃冰激凌。李华今天要学两个常用语:my treat和ginormous. LL: Well, Li Hua, you just finished a big paper, and I just finished an important project at work. Let's go for ice cr

发表于:2019-01-15 / 阅读(119) / 评论(0) 分类 美国之音《流行美语》

BEIJING, June 28 (Xinhuanet) --China will not bow to pressure (压力,压迫) from the outside world on revaluing the renminbi and any changes in the nation's foreign exchange will be made on China's own terms, Chinese officials heading to the G2

发表于:2019-01-31 / 阅读(118) / 评论(0) 分类 英语新闻

a dumb boy 笨小孩 A young boy enters a barber shop and the barber whispers to his customer ..., This is the dumbest kid in the world. Watch while I prove it to you. The barber puts a dollar bill in one hand and two quarters in the other, then call

发表于:2019-02-03 / 阅读(175) / 评论(0) 分类 趣味英语

The new movie 'Social Network' -- due to hit theaters in coming weeks -- may inspire some college students to attempt to emulate the film's hero, Facebook Inc. founder Mark Zuckerberg. But the reality is that many young entrepreneurs find their tende

发表于:2019-02-06 / 阅读(80) / 评论(0) 分类 阅读空间

Larry和李华在学校的食堂里吃晚饭。李华今天会学到两个常用语;to down和to chug。 LL: You know, Li Hua, I think I can down this entire hamburger in a single bite. I am that hungry. LH: 听你的意思,我猜你是说你可以

发表于:2019-02-12 / 阅读(93) / 评论(0) 分类 美国之音《流行美语》

Every morning at approximately 8:48 a.m., I pass itthe brick building that I visited many times as a child and that once seemed so grand, now a miniature playhouse in my mind. 每天早晨,大约8点48分的时候,我都会路过那栋砖砌的建筑

发表于:2019-02-13 / 阅读(121) / 评论(0) 分类 英语美文

BEIJING, Aug. 7 (Xinhua) -- A Chinese official who regulates investment activities in the country said Tuesday the government's measures encouraging private funds to enter more sectors have worked and helped stabilize investment growth this year. The

发表于:2019-02-17 / 阅读(77) / 评论(0) 分类 英语新闻

本文选自美国作家Jim Willis的畅销书《Pieces Of My Heart-----Writings Inspired by Animals and Nature》,该书以自述的形式讲述了一只家犬对昔日主人的真情告白。当年作者用七千美元以全版广告的形式在报

发表于:2019-02-17 / 阅读(166) / 评论(0) 分类 阅读空间

DOHA, Jan. 25 (Xinhua) -- The Qatar(卡塔尔)- based broadcaster Al- Jazeera launched Monday a second cache of documents quoting Palestinian National Authority President Mahmoud Abbas as saying it would be illogical to ask Israel to absorb five

发表于:2019-02-18 / 阅读(63) / 评论(0) 分类 英语新闻

16 I dont mean to cross the line. 直译是我不想越界。这句话的意思是,我并不是想管闲事呀,只是随便问问。I dont mean to cross the line, is she your new girl friend ?? 17 Thank you for (the tea, and so on), and eve

发表于:2019-02-18 / 阅读(192) / 评论(0) 分类 英语口语

What are the most profound jokes ever? 有哪些笑话很有内涵? 获得10.8k好评的答案@Vinaya Patil A young boy enters a barber shop and the barber whispers to his customer, This is the dumbest kid in the world. Watch while I prove it to yo

发表于:2019-02-18 / 阅读(77) / 评论(0) 分类 阅读空间
学英语单词
-conazole
a long way to go
actionlike
American life style
Ameroid liquid coagulant
anisotropic gain
arch leaning program
automatic video delay
backbone ring
beer snake
Belling's stain
Billing period
binos
bite one's nails
brand spoofing
call time
case-reports
certificate of protest
conchairamine
conphaseolin
corrego novo
cost effective method
cylinder function
deregulations
deviation display
dibothriocephaliasis
disembodiments
dust-free area
eloigned
embolic
endurance road testing
exophthalmia
floodplain of aggradation
go - ahead signal
gray mango
grimier
hard-eyed
impropriatrix
information processing flowchart symbols
invisible current transaction
judicial offices
keyon
labrador teas
land biological treatment
larghettoes
life-course-persistent
Lindholme Airport
lougee
loyal opposition
lydite(lydian stone)
Macracanthorhynchus hirudinaceus
marx
maximum loading capacity
mecklenburg-vorpommern
medicolegal investigation
meropesta pellucida
mobilizaion of financial resources
mountainboards
moving-coil-type instrument
murky waters
nail-punch
nautisan
nipcheese
non proliferation
one-shot operation
otto cycle thermal efficiency
outer fix
palaeoryctids
particular international law
peacebreaker
penicillium gladioli mc culloch. et thom
PHIX
physostab
pigmy talinums
polychloriznation
protection ecology
put someone into a dilemma
quenchless
reference illuminant
rinsing bath
romanoffs
rongeurs
rough plank
Schottmuller's disease
sexed subject
Shafi'iyah
soft rot of cabbage
solid axis
spill the dirt
swishing
tax-deeded
tennessee-martin
theoretical source
tilted cylinder mixer
transferring data in storage
Transportation agreement
trimness
trouchman
ugly sky
unrealised
wintercherry fruit or calyx
zithers