辽宁马鞍山市2014
高考英语阅读理解、动词短语精讲讲练(20)及答案 genetics is not just a science, let alone a technology or a business. genetics is a profound idea. genetics journals, for instance, fill their pages with discoveries of “disease genes” that lurk (潜伏) silent, in the twists and bends of our dna, ready to turn on us. the very idea of disease genes that