我国先后在南极地区建立了长城站、中山站和昆仑站三个极地科学考察站,建站时间一般选在2月份,其原因是此时
( )(7) She is work in ___ hotel . A. a B. an C. None
( )(6) Nice to see ______. A. you B. your C. yours
( )(5) Tom work at the Bank ____ China . A. in B. at C. of
( )(4) _____ is your job ? A. Where B. What C. How
( )(3) Lucy work ___ a cinema . A. in B. at C. on