题目

Section B A.accompanied     B.trend        C.resist      D. murder     E.incredible F.severe           G.involving    H. tolerant     I.roughly     J. particular Drunken driving——sometimes called America’s socially accepted form of41_——has become a national infectious disease．Every hour of every day about three Americans on average are killed by drunken drivers, adding up to an42number of 250,000over the past decade． A drunken driver is usually defined as one with a 0．10 blood alcohol content or      43three beers, glasses of wine 从百合科植物提取的秋水仙碱具有润肺止咳功效，其化学式为 C22H25NO6。下列说法正确的是( )A. 秋水仙碱中氧元素的质量分数约为 24% B. 秋水仙碱中碳、氢元素质量比为 22：25C. 秋水仙碱由 54 个原子构成 D. 秋水仙碱属于有机高分子化合物