-
[Step by Step 3000 英语听力入门 第3册] Step by Step 3000 第3册 Unit6:Human genome proj
The goal of the human genome project initiated in the early 1990s is to identify, catalog, map and analyze every one of the estimated 100,000 genes in the human body.2016-01-19 编辑：Helen
-
[Step by Step 3000 英语听力入门 第3册] Step by Step 3000 第3册 Unit6:Human genome proj
Charts of DNA. The genetic blueprint of human beings. Deciphering the genetic code is the lifeblood of top researcher Ira Herskowitz.2016-01-20 编辑：Helen
-
[Step by Step 3000 英语听力入门 第3册] Step by Step 3000 第3册 Unit6:Latest breakthrou
Everybody thinks of technology as somebody in a lab coat, you know, tinkering with computer chips, but techonology is really about how we live and how we communicate.2016-01-21 编辑：Helen
-
[Step by Step 3000 英语听力入门 第3册] Step by Step 3000 第3册 Unit6:Latest breakthrou
The P3 wrist camera sort of talks to that whole concept of miniaturation and having devices intergrated into things that you wouldn't think of.2016-01-22 编辑：Helen
-
[Step by Step 3000 英语听力入门 第3册] Step by Step 3000 第3册 Unit6:Language Study an
This is the first study to show that writing can result in clinically meaningful outcomes for chronically-ill patients.2016-01-25 编辑：Helen
-
[Step by Step 3000 英语听力入门 第3册] Step by Step 3000 第3册 Unit6:Language Study an
If you have a serious injury anywhere in Maryland, this system will get you the right treatment with the least delay.2016-01-26 编辑：Helen
-
[Step by Step 3000 英语听力入门 第3册] Step by Step 3000 第3册 Unit9:Warming up(1)
Boeing, the world's leading commercial airplane maker, announced it has 18 billion dollars in new orders this year for its new 777 jetliner.2016-02-29 编辑：Helen
-
[Step by Step 3000 英语听力入门 第3册] Step by Step 3000 第3册 Unit9:Warming up(2)
Monorail systems relay on a very simple technology, rubber-tired cars riding on a narrow concrete guideway.2016-03-01 编辑：Helen
-
[Step by Step 3000 英语听力入门 第3册] Step by Step 3000 第3册 Unit9:Public Transporta
In 1888, Boston, Massachusetts, became the first American city to replace horse-drawn trolleys with electric streetcars.2016-03-02 编辑：Helen
-
[Step by Step 3000 英语听力入门 第3册] Step by Step 3000 第3册 Unit9:Public Transporta
Today, the world's urban areas hold more than 4 times the population in the 1950.2016-03-03 编辑：Helen
-
[Step by Step 3000 英语听力入门 第3册] Step by Step 3000 第3册 Unit9:Southwest(1)
Another North American business hard hit in the late eighties and the early nineties is the airline industry.2016-03-07 编辑：Helen
-
[Step by Step 3000 英语听力入门 第3册] Step by Step 3000 第3册 Unit9:Southwest(2)
But stockholders care about substance as well as style.2016-03-08 编辑：Helen
-
[Step by Step 3000 英语听力入门 第3册] Step by Step 3000 第3册 Unit9:Cross the channel
They are the Channel Expressway, EuroRoute and Flexilink. Listen carefully and match the pictures blew to the schemes you hear about.2016-03-04 编辑：Helen
-
[Step by Step 3000 英语听力入门 第3册] Step by Step 3000 第3册 Unit10:Warming up(1)
High pollution season's got us watching our driving pretty closely, but workers in Martin Marietta are getting really practical help.2016-03-09 编辑：Helen
-
[Step by Step 3000 英语听力入门 第3册] Step by Step 3000 第3册 Unit10:Oil reserves and
Saudi Arabia's on the top with 266 billion barrels, Iraq and Iran are also rich in crude along with Kuwait and the United Arab Emirates.2016-03-11 编辑：Helen
-
[Step by Step 3000 英语听力入门 第3册] Step by Step 3000 第3册 Unit10:Oil reserves and
In many American cities finding a place to park your car can be a headache, in Tokyo it's more like a migraine.2016-03-14 编辑：Helen
-
[Step by Step 3000 英语听力入门 第3册] Step by Step 3000 第3册 Unit10:A motor city bre
The American auto industry has been looking for ways to rescue its sagging bottom line.2016-03-15 编辑：Helen
-
[Step by Step 3000 英语听力入门 第3册] Step by Step 3000 第3册 Unit10:Clean air cars(1
Besides gasoline or petrol, what can cars be powered by?2016-03-16 编辑：Helen
-
[Step by Step 3000 英语听力入门 第3册] Step by Step 3000 第3册 Unit8:Tomorrow's ho
What is home automation? In your opinion, what are some of the things that could be examples of home automation?2016-02-23 编辑：Helen
-
[Step by Step 3000 英语听力入门 第3册] Step by Step 3000 第3册 Unit8:Language Study an
Now home to some 800 million pages, a figure that's doubling each year, searching the Internet can be like looking for a needle in a haystack.2016-02-25 编辑：Helen
