[建] 催化氧化

[00:00.00]What Makes a Teacher 为师之道 [00:04.63]It is customary for adults to forget how hard and dull and long school is. [00:11.85]The learning by memory of all the basic things one must know [00:15.45]is a most incredible and unending effort. [

发表于:2019-01-01 / 阅读(42) / 评论(0) 分类 语言的力量

This is Scientific Americans 60-Second Science, Im Steve Mirsky. Got a minute? The 2010 Nobel Prize in Chemistry goes to the University of Delawares Richard Heck, Purdues Ei-ichi Negishi and Hokkaido Universitys Akira Suzuki for their work in develop

发表于:2019-01-08 / 阅读(68) / 评论(0) 分类 Scientific American(十)月

A letter which could stand for evergreen. There are sticks of trees everywhere. Or extreme environment. Bye-bye. Or even for experts. In the vicinity of five minutes, these pants should be in New York. But while these would be suitable selections, th

发表于:2019-01-23 / 阅读(64) / 评论(0) 分类 探索与发现2013年