GRE数学常见表达式汇总

GRE数学常见表达式汇总 1.is equal to; is the same as = the result is; yields; gives 2.the sum of x and y; the total of x and y; x added to y; x increased by y; x+y x more then y; x greater than y 3.x minus y; x less y; the difference of x and

SSS 2008-11-18

This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. In theory, scientists could learn a lot about our health by testing tiny amounts of bodily fluidsa drop of blood, a tear, a bead of sweat. But somethin

美联社新闻一分钟 2006-03-09

1. 3 college students were arrested Wednesday for allegedly setting fire to 9 Baptist churches across Alabama. One of the suspects allegedly said the first fires were set as a joke. The others were st

英语听力：自然百科 地球力场 Earth's Force Field—18

Earth's magnetic field has reversed thousands of times since its formation 4.5 billion years ago. And scientists now believe that the next reversal is imminent. The race is on to predicting exactly when it will occur. In 2010, the European Space Agen

英语听力：自然百科 地球力场 Earth's Force Field—19

As the reversal approaches, the decay of our magnetic field will continue and cosmic radiation will get increasingly close to the Earth's surface. As the reversal approaches, the decay of our magnetic field will continue and cosmic radiation will get

英语听力：自然百科 地球力场 Earth's Force Field—13

Glatsmire's model shows that the magnetic poles swap places spontaneously due to / complex processes within the core. We were used to the idea that a compass points somewhere near the North Pole and hence we can use it for navigation, but there are p

英语听力：自然百科 地球力场 Earth's Force Field—15

By analyzing thousands of lava samples, geophysicists discover/ that the Earth's magnetic field has reversed over 18,000 times in the last 20 million years. On either side of these reversals is a long period of dramatically reduced field strength. Du

学个词Learn a Word 第363期 Reversal

今天我们要学的词是reversal。 Reversal, 是逆转的意思。A reversal of policy, 意思是政策的逆转。A reversal of decision, 意思是改变主意。支持泰国前总理他信的政党在星期天的选举中成为国会第一大党，

一生之中你不可不知道的趣味常识

1. Your stomach has to produce a new layer of mucus every two weeks otherwise it will digest itself. 为了防止把自己消化掉，你的胃不得不每隔两周就造出一层新的粘膜。 2. Owls are the only birds that can see the colour blue

2007年VOA标准英语-Philippine Election Sees Reversal of Fortune fo

By Douglas Bakshian Manila 19 May 2007 International boxing champion Manny Pacquiao can deliver a knockout in the ring, but in the Philippine political arena the super featherweight appears headed for a loss. Preliminary returns from national electio

每日一词【363】reversal：逆转

今天我们要学的词是reversal。 Reversal, 是逆转的意思。A reversal of policy, 意思是政策的逆转。A reversal of decision, 意思是改变主意。支持泰国前总理他信的政党在星期天的选举中成为国会第一大党，

十条你不知道的趣味生活常识

1. You spend about 23 years sleeping in a 70 year life。 在70年的生命中，你大约要花23年的时间睡觉。 2. Owls are the only birds that can see the colour blue。 猫头鹰是唯一能看见蓝色的鸟类。 3. Your stomach has to pr

VOA标准英语2008年-US Calls for Reversal of Mauritania Coup

The United States Wednesday vigorously condemned the military overthrow of the Mauritanian government and called for the restoration of democratic rule. The coup could lead to sanctions by the United States and European Union. VOA's David Gollust re

Reversal of Roles

Barbara Walters did a story on gender roles in Kuwait several years before the Gulf War. She noted then that women customarily walked about 10 feet behind their husbands. She returned to Kuwait recently and observed that the men now walked several ya

美语听力 English Cafe 370

Topics: Movies - Butch Cassidy and the Sundance Kid; Mount Rushmore; threat versus menace versus peril; using should with have to; role reversal Words: loosely based on outlaw to flee sculpture to carve granite to draw to depict from the waist up to

经济学人: 热带疾病 (1)

Malaria killed 435,000 people last year, most of them in Africa. 去年435,000人死于疟疾，其中大部分在非洲。 The parasite that causes the illness is carried by females of some, but not all, species of mosquitoes of the genus Anopheles.

你可能不知道的趣味生活常识

你可能不知道的趣味生活常识 1．You spend about 23 years sleeping in a 70 year life。 在70年的生命中，你大约要花23年的时间睡觉。 2． Owls are the only birds that can see the colour blue。 猫头鹰是唯一能看见蓝

一生中你不一定知道的真相

You spend about 23 years sleeping in a 70 year life。 在70年的生命中，你大约要花23年的时间睡觉。 Owls are the only birds that can see the colour blue。 猫头鹰是唯一能看见蓝色的鸟类。 Your stomach has to produce a n

英语听力精选进阶版 6400

Do you know the open-air art gallery in London's Blackall Street? Not many Londoners know it either, but Henri does and he is willing to show it to you. Henri used to sleep rough until he met a charity that helps homeless people get back on their fee

星火英语四级2000核心词 10

[00:12.00]Day 10 [00:14.00]exact [00:15.00]To be exact, she is a very exact person. [00:20.00]explore [00:22.00]As soon as they arrived in the town [00:23.50]they went out to explore. [00:27.00]exposure [00:28.00]Exposure of children to TV violence [