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[单选题]
3.For a couple of years I was working on a __________ basis; then I was hired by a big company in 1998 and have been working there ever since.
A.professional
B.revolutionary
C.reasonable
D.freelance
提问人:网友shp1954
发布时间:2022-01-06
A.professional
B.revolutionary
C.reasonable
D.freelance
A、in turn
B、in return
C、by turns
D、on the turn
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