Australians eat ----- vegetables per person today as they di

1.答案：D.
2.翻译：澳大利亚人现在每人所吃的蔬菜,是1910年时(所吃的蔬菜)两倍多.
3.
1）此题考查倍数表达法,即：
A ...+ 倍数词 + as + 形容词原级（+ 名词)/ 副词原级 + as + B.
意思是“A在某方面是B的若干倍”.
2）该题中,倍数词为more than twice,即“两倍多”；
“形容词原级 + 名词”即 many vegetables；
B即they did in 1910；
至于per person today是插入的状语,对该结构并无影响.
3）其他答案辨析：
A项中缺少“形容词原级”,而该成分是绝对不能省略的；
B项更离谱,倍数词twice都跑到as...as中间去了；
C项中最后多了个as,因为as they did in 1910已经有了as了.
4.此题亦可用表达为：
Australians eat more than twice more vegetables per person today than they did in 1910.