It is the marketing department______ owns and operates this business website.
A. who
B. what
C. that
D. where
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If I_______ in your position, I would try to take classes while working.
A. am
B. have been
C. were
D. will be
No sooner______ the message to Sarah than I got a phone call from her.
A. has I sent
B. I had sent
C. had I sent
D. I did send
为何将按劳分配为主体,多种分配方式并存的分配制度上升为我国基本经济制度?