It is in Qingdao you are going to pay a visit to this kind of washing machine isproduced

问题补充：

It is in Qingdao you are going to pay a visit to this kind of washing machine isproduced.

A. /; that

B. where; which

C. /; where

D. that; which

答案：

(答案→)A. /; that

B. where; which

C. /; where

D. that; which

解析：考查从句和强调性句型，第一个是个定语从句，先行词是in Qingdao，从句you are going to pay a visit to缺少宾语，所以它省略了关系代词that/which，从句做为被强调的内容，后面用that，不能省去，所以选A