楼上大虾解释的不是答案啊 答案的句子是because it weighs only 8.1 grams, far less than four quarters.
-- by 会员 ccergsm (2010/9/1 10:19:32)
这题考的是parallelism, than前后应该对称,而且没有more ... rather than这种结构,所以选CC中,我觉得it指代的内容是Sacagawea dollar coin,因为Sacagawea dollar coin是句子的主语,而且the dollar bill也不可能有8.1grams重啊~ 我认为"far less than the quaters"在这里可以理解为"weights"的状语,为状语后置现象,移到前面就是"it weights, far less than the quaters, which weigh 5.67 grams each, only 8.1 grams."后置是因为状语太长而宾语太短,避免句子重心不平衡。
-- by 会员 edmundshi (2009/7/7 20:04:00)