297. This contrasts sharply with the coordinated national programs of most other countries.译文 这与其他大多数国家协... [查看全文]
296. Not only do approaches to teaching science and math vary among individual U.S. communities, the report finds... [查看全文]
295. Though there can be strength in diversity, a new international analysis suggests that this variability has i... [查看全文]
294. Recycling electronic waste is a dangerous and specialized matter, and environmentalists maintain the state mus... [查看全文]
293. A San Jose councilwoman and a San Francisco supervisor said they would propose local initiatives aimed at c... [查看全文]
292. When things don't turn out as we would like them to, it is very tempting to assume that had we done thi... [查看全文]
291. I had an experience some years ago which taught me something about the ways in which people make a bad s... [查看全文]
290. If only I hadn't insisted on my mother's going to Florida, she would be alive today.译文 如果我没有坚持让妈... [查看全文]
289. These symbols of distinction assure us and others that we believe strongly in the fundamental equality of a... [查看全文]
288. Meanwhile, most children are vulnerable to the enormous influence exerted by grandchildless parents aiming to... [查看全文]