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

根据证券商活动的内容不同，可以分为（）

A.佣金交易商

B.证券公司

C.交易所交易商

D.零股交易商

E.保险交易商