Passage 1 Automation refers to the introduction of electronic control and automatic operation of productive machinery. It reduces the human factor....六级阅读
Passage 1 Not content with its doubtful claim to produce cheap food for our own population ，the factory farming industry also argues that “hungr....六级阅读
Passage 1 Not content with its doubtful claim to produce cheap food for our own population ，the factory farming industry also argues that “hungr....六级阅读
Life Is a Test. It Is Only a Test One of my favorite posters1 says, “ Life is a test. It is only a test. Had this been a real life you would have b....六级阅读
A lot of animals are afraid during an eclipse1 of the sun. Birds stop singing. Sometimes people too are afraid. Astronomers2 know the dates of eclip....六级阅读
Scholars and students have always been great travelers. The official case for “academic mobility” is now often stated in impressive terms as a fun....六级阅读
Mobile office is the mutual product of economic，scientific，and social progress.Mobile office has become a solution that provides users with conven....六级阅读
Some plants get so hungry they eat flies, spiders, and even small frogs. What's more amazing is that these plants occur naturally （in special envir....六级阅读
Look at the keyboard of any standard typewriter or computer. "Q," "W," "E," "R," "T" and "Y" are the first six letters. Who decided on this arrangem....六级阅读
Everyone has a moment in history， which belongs particularly to him. It is the moment when his emotions achieve their most powerful sway over him，....六级阅读
The Reader's digest investigation asked Americans which was the biggest threat to the nation's future—big business， big labor or big government. A....六级阅读
