It is in Qingdao ______ you are going to pay a visit to ______ this kind of washing machine is  produced.
#77598
A
/; that
B
where; which
C
/; where
D
that; which
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She came back with her two friends,        . 
#78137
A
neither of them are doctors
B
neither of them is a doctor
C
neither of whom are doctors
D
neither of whom is a doctor