Look at the new computers of none are produced abroad.A. themB. whom C. whichD. these

问题补充：

Look at the new computers, of none are produced abroad.

A. them

B. whom

C. which

D. these

答案：

A. them

B. whom

(答案→)C. which

D. these

解析：考查定语从句。句中先行词为the new computers，在从句中作of的宾语，故用关系词which。句意：看看这台些电脑，当中没有国外生产的。