标题: OG(12)-80 [打印本页] 作者: deng2y 时间: 2009-12-25 06:11 标题: OG(12)-80 A report by ... has concluded that much of the currently uncontrolled dioxins to which North Americans are exposed comes from the incineration of wastes. (A) much of the currently uncontrolled dioxins to which North Americans are exposed comes
(B) much of the currently uncontrolled dioxins that North Americans are exposed to come
(C) much of the doxins that are currently uncontrolled and that North Americans are exposed to comes
(D) many of the dioxins that are currently uncontrolled and North Americans are exposed to come
(E) many of the currently uncontrolled dioxins to which North Americans are exposed to come
这题正确答案是E,OG给的解释是 much if used for an uncountable quantity such as effort or rain; many must be used for a countable quantity such as people or dioxins. 我疑惑了～dioxin 是可数的吗？刚在网上查了一下～它是不可数名词啊～请NN们指点！作者: biantaishabi 时间: 2009-12-25 06:23
dioxins指的是一类物质的集合名词， 这里的many of dioxins是这个集合里面的很多种二恶英
wikipedia的解释是The terms dioxins and dioxin-like compounds (DLC[1]) commonly refer to a class of highly toxic compounds that are environmental pollutants and persistent organic pollutants (POPs). The terms usually refers to or is associated with