15. A substance from the licorice plant, 50 times sweeter than sucrose, was recently discovered, is not only a natural sweetener but also prevents tooth decay.
(A) A substance from the licorice plant, 50 times sweeter than sucrose, was recently discovered
A 中有两个动词was 和 is 引导的句子。
(B) A substance, which was recently discovered, from the licorice plant, 50 times sweeter than sucrose,
(C) A substance from the licorice plant, which was recently discovered to be 50 times sweeter than sucrose,
which 就近修饰 plant, 改变句意。
(D) A substance from the licorice plant, 50 times sweeter than sucrose , which was recently discovered,(B)
同意上楼robertchu 的理解
(E) A recently discovered substance, 50 times sweeter than sucrose from the licorice plant,
错误显然,from the licorice plant 修饰sucrose ,改变句意。
五个句子中比较,选B
[此贴子已经被作者于2004-7-16 22:23:03编辑过] |