It is in Qingdao you’re going to pay a visit to this kind of washing machine is produced.
A. / , that
B. where, which
C. / , where
D. that, which
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(答案→)A. / , that
B. where, which
C. / , where
D. that, which
解析：考查定语从句和强调句型。第一空是定语从句,因为关系代词在句中作为to的宾语，可以省略；第二空的that与it is构成强调句型。句意：这种洗衣机就是在你参观的青岛被生产出来的。故A正确。