单词：level supervising device
单词：level supervising device 相关文章
PHILLIPS: A crack in the system. An Ohio hospital pharmacist is now out of prison, but his case could have long-range repercussions keeping any future medical mistakes quiet. The hospital's dirty little secret. The CNN's David Mattingly investigates.
CNN2010年(二)月
This is Scientific Americans 60 Second Science, I am Sophie Bushwick, got a minute. Kindles, Nooks and other e-readers catch flack for threatening the future of printed books. But reading itself may get a boost from the devices. For example, a study
Scientific American(三)月
She asked if he smoked or drank. He didn't. She asked if he flossed. After every meal, he said proudly. She examined his teeth. She said he might need two new fillings. She called her supervising dentist over. He examined Larry's teeth. This is very
英文短篇故事（纽约）
EDUCATION REPORT - Philadelphia Schools Revisited By Jerilyn Watson Broadcast: Thursday, January 22, 2004 This is Steve Ember with the VOA Special English Education Report. Almost two years ago, a Pen
教育与新闻
Britain is an island. We are surrounded by sea. Nowdays, you can get here by plane, or by train through the Channel Tunnel. But before planes were invented, and the Channel Tunnel was built, the only way to come to Britain was by sea. The seas around
听播客学英语