难题at speeds much higher than is currently possible.比较句,如何比较
难题at speeds much higher than is currently possible.比较句,如何比较
According to analysts,an alliance between three major personal computer companies and most of the nation’s largest local telephone companies would enable customers to receive internet data over regular telephone lines （with speeds much higher than is currently possible.）
A.with speeds much higher than is
B.with speeds that are much higher than are
C.at much higher speeds as are
D.at much higher speeds than that
E.at speeds much higher than are
高人请选择正确的选项,并把这句话补全.
括号内是bcde选项可替换的部分
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what竟然也能省略，原来是这样啊。有人说是省略了speeds that。than可以做连词和介词，关系代词第一次听说，是否类似定语从句中that，which的形式，老师麻烦举例than引导的定语从句6．这件事情比想象的要复杂。（than） This matter is more complex than is imagined． 7．This advertisement is more affective than is expected． 7．这个广告的效果比预想的要好。（than） This advertisement is more affective than is expected． 8．这个问题看起来容易，实际上很难。（than） The problem may be more difficult in nature than would appear9．他爸妈给他的零用钱总是超过他的需要。（than） He got more pocket money from his parents than was demanded．than/but/as作为关系代词 引导定语从句 是定语从句 的三大怪 你可以 输入 than引导定语从句在网上搜我想 你能明白