难题at speeds much higher than is currently possible.比较句,如何比较
1个回答
本题答案是 E.at speeds much higher than are currently possible
at speeds是固定搭配 后面是形容词短语 作定语 修饰 speeds后面的than 我认为是关系代词 引导的是定语从句 当然 也有人认为 than 是介词 后面是省略what的宾语从句
A.with speeds much higher than is有语法错误 介词错 is错
B.with speeds that are much higher than are应该去掉 that are否则 than 没有先行词
C.at much higher speeds as are 错在as
D.at much higher speeds than that错在that（those）
E.at speeds much higher than are正确答案
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