标题: 这个题的E为什么不对呀？？求大牛解答 [打印本页] 作者: mike125615212 时间: 2012-1-28 21:45 标题: 这个题的E为什么不对呀？？求大牛解答 Antigenic shift refers to thecombination of two different strains of influenza; in contrast,antigenic drift refers to the natural mutation of a single strain of influenza. A. influenza; in contrast, antigenicdrift refers to the natural mutation of a single strain of influenza B. influenza, different than thenatural mutation of a single strain, known as antigenic drift C. influenza, in contrast to thenatural mutation of a single strain, known as antigenic drift D. influenza, different than antigenic drift, which refers to thenatural mutation of a single strain of influenza E. influenza; in contrast to antigenic drift, which refers to thenatural mutation of a single strain of influenza作者: wwc008love 时间: 2012-1-28 21:56
选A。。B和D的different than 要改为different from..C我觉得in contrast to引导的比较对象不对等，应该是antigenic drift 和antigenic shift比较。 E用的是封号，封号必须连接两个完整的主谓结构，封号后面的显然不是完整句子作者: xeniaxin 时间: 2012-1-28 22:04
E的which有指代不清的嫌疑。。。可以就近指代antigenic drift也可以理解成指代“in contrast to antigenic drift”整句