标题: posed修饰谁? [打印本页] 作者: hedgeforfun 时间: 2003-10-25 22:14 标题: posed修饰谁? 6.The Audubon Society and other conservation groups, concerned over what they have perceived to be the serious threatening of the environment as posed by the policies of the government, are preparing for a major political effort. (A) have perceived to be the serious threatening of the environment as (B) perceived as the serious threat to the environment as (C) perceive being the serious threat to the environment (D) are perceiving as the serious threatening of the environment (E) perceive as the serious threat to the environment 选e,我选了b,有什么不同?posed修饰谁?