2015年卫生类职称英语考试备战已经开始了，这是小编整理的一些常见的知识点，希望对您能有所帮助。磨杵成针，滴水穿石，每天进步一点，积累下来便是巨大的成功。
not…because…，有时可否定前面，有时可否定because本身，往往出现歧义。应根据上下文面判定。
In 1600 the earth was not the center of the universe because the majority then supposed it was;nor,because she had more readers,was Ella wheeler Wilcox a better poet than Father Hopkins.
