"We also carefully consider the sources of exposure of populations to radiofrequency electromagnetic fields, the nature of these fields as they come from various devices, including wireless phones, and we look carefully at the physical phenomenon by which exposure to such fields may perturb biological systems and lead to cancers."

VOA: special.2011.06.06

That is the good news.The bad news is there isn't a text that fits this syllabus, so we choose readings from various sources.And the text that I have chosen is the best of a bad lot.

那是个好消息，坏消息是,没有与课程大纲对应的课本，我们从很多的资源中选取阅读材料,我选的课本不过是糟粕中的精华。

麻省理工公开课 - 固态化学导论课程节选

There are sources of protein, and this may not surprise you are multiple, and they come in these various sources. These are all good sources of protein but not the only ones.

如你所知,依次为,鱼类和海鲜,家禽,肉类乳品,鸡蛋,豆类,酱油

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选