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1.                             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.fficeffice" />

(A) A substance from the licorice plant, 50 times sweeter than sucrose, was recently discovered

(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,

(D) A substance from the licorice plant, 50 times sweeter than sucrose , which was recently discovered,（B）

(E) A recently discovered substance, 50 times sweeter than sucrose from the licorice plant,

i think D is better than B    

up

Why is E wrong?? Does it because the 'from the licorice plant,' modify 'sucrose' rather than 'substance'?

有请 NN.

B is the best。

Thanks, Leeon.

Q?  in choice B,  '50 times sweeter than sucrose'  修饰不明啊。可以指 plant 也可能是 substance.

请 NN 再明示。 谢了先。

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.

(B) A substance, which was recently discovered, from the licorice plant, 50 times sweeter than sucrose,

(D) A substance from the licorice plant, 50 times sweeter than sucrose , which was recently discovered

水平有限，只能提问：为什么 “50 times sweeter than sucrose ”能省略了which is（相信大家都知道），除此之外，B能这么做还因为前面已有重复