13. In geometry, an ellipse may be defined as
the locus of all points -------distances from
two fixed points is constant.
(A) which as the sum of
(B) of the sum which
(C) whose sum of whose (D) whose sum that the 怎么感觉答案没有一个是对的啊?谁能给分析一下句子结构,这个看起来有点儿混乱!
26. Hard and resistant to corrosion, bronze is traditionally used in bell casting and is the material used widely most for metal sculpture.
这里很明显C是错的,但感觉D也不对,不是说可数名词不能单独存在吗?应该加复数或者加定冠词的呀!
[此贴子已经被作者于2004-9-20 12:20:41编辑过] |