that不能指代复数名词。
此处的that是作为代词使用的,所以要注意指代名词单复数。speeds ---->所以用those而不能用that【正确表达:at speeds (that would be) much higher than (speeds that) are currently possible】
主系表结构的比较当主语相同时是可以省略的,但是be动词必须补出。 at speeds (that will be) much higher than (speeds that) are currently possible that不能指代复数名词speeds
1. that指代不清
that数量不一致
than that的that单数指代错误,speeds 应该用those
that应该是指代前面的speeds,但是前面speeds是复数形式
that指代不能指代前面的speeds
speeds 是复数,不能用that 指代
比较对象是speed,而不是data. 所以不能用that 代替
speeds 应该用those代替
that 不能指代名词复数!!!
that不能指代复数名词speeds 主系表结构的比较当主语相同时是可以省略的,但是be动词必须补出。 at speeds (that will be) much higher than (speeds that) are currently possible
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