第15题: [单项选择]What happened to most of the adventurers from Europe A. They never came back home with desired diamonds. B. They lost the hard-earned diamonds on their way back. C. They were sentenced to death for stealing diamonds. D. They returned home as content as millionaires. 参考答案:A 答案解析:[解析] 听到文中提到大多数早期钻矿工人died或lost时就应该可以推断出“他们没有能够带着梦寐以求的钻石回到家乡”,即A。 [点睛] 选项描述的是They的命运。仔细听音,即可准确作答。B
第31题: [单项选择]下列哪个因子参与蛋白质翻译的起始 A. RF B. IF C. EF-Lu D. EF-Ts 参考答案:B 答案解析:[考点] 翻译起始因子 [解析] IF为起始因子。肽链的合成是连续的,上一轮合成的终止紧接下一轮合成的起始。这时完整核糖体的大、小亚基须拆离,准备mRNA和起始氨基酰tRNA与小亚基结合。I