非限制性定语从句：
The factory produced many famous cars every year,none of (which were )shopped to foreign countries
独立主格结
The factory produced many famous cars every year,none of (them )shopped to foreign countries.
看到区别了吧.
非限制性定语从句：
The factory produced many famous cars every year,none of (which were )shopped to foreign countries
独立主格结
The factory produced many famous cars every year,none of (them )shopped to foreign countries.
看到区别了吧.