请教大侠~

penguinvino

Though the law will require emissions testing of all diesel vehicles, from tractor trailers to excursion buses, it will have no effect on sport utility vehicles, almost all of which are gasoline powered, and will not be subjected to emissions-control standards as stringent as they are for diesel-powered vehicles. A. powered, and will not be subjected to emissions-control standards as stringent as they are for B. powered, and therefore not subjected to emissions-control standards that are as stringent as those of C. powered and therefore not subject to emissions-control standards as stringent as those for D. powered, which are not subject to emissions-control standards as stringent as they are for E. powered and therefore they are not subject to emissions-control standards as stringent as those of C里面的therefore前面是不是省略了have？谢谢~

kiwifoodtown

penguinvino 发表于 2013-12-27 13:19
如果是并列的话“therefore not subject to emissions-control standards as stringent as those for”是 ...

almost all of which are

penguinvino

kiwifoodtown 发表于 2013-12-27 10:51
不是省略have，注意它是从句almost all of which are 中的一个并列。

如果是并列的话“therefore not subject to emissions-control standards as stringent as those for”是不是缺少动词呢？

kiwifoodtown

不是省略have，注意它是从句almost all of which are 中的一个并列。