Americans eat ______vegetables per person today as they did in 1910a.twice as many as b.more than twice as many为什么不选A

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Americans eat ______vegetables per person today as they did in 1910a.twice as many as b.more than twice as many为什么不选A

Americans eat ______vegetables per person today as they did in 1910a.twice as many as b.more than twice as many为什么不选A
Americans eat ______vegetables per person today as they did in 1910
a.twice as many as
b.more than twice as many
为什么不选A

Americans eat ______vegetables per person today as they did in 1910a.twice as many as b.more than twice as many为什么不选A
你的A和B的选项/ 答案都是对的.more than/ less than / about 都是用来修饰twice的,在语法上,它们的存在与否并不影响整个句子.所以,你要提问,对吗?

因为today后面已经有as了

因为today后面已经有as了,故之前应该省略many后面的as,所以只能选B了
希望我的回答能帮助到你O(∩_∩)O哈!有不懂的继续问我噢~