Nissan's plants in Zhengzhou and Guangzhou, operate in cooperation with Dongfeng Motor Corp., remained closed.
A. which
B. who
C. that
D. whose
网友回答
(答案→)A. which
B. who
C. that
D. whose
解析：A 考查定语从句。句意：在郑州和广州，与东风汽车集团合作的尼桑工厂还关闭着。分析句子结构可知，两个逗号之间的句子是非限制性定语从句，且空处在从句中作主语，指代前面的plants，故用which来引导。A项正确。