When a spacecraft travels, one of the major problems is reentry into the Earth ’s _______.
更新时间:2024-11-24 07:21:44 A、surfaceB
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Withthehelpofthegovernment,alargenumberofpeople---_______afterthefloodin1991.
Wedonothavea_______schoolinourinstitute.ThehighestdegreeweprovideforthestudentsisaB.A.andaB.S..
Weare_______attherapidprogressMarkhasmadeinthissemester.
Manykindsofanimalsarebelievedtohave_________fromtheearth
Afterworkingfortwentyhourswithoutanyrest,thedoctorswere_______.
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