HumansmaynothavelandedonMars(火星)justyet,butthatisn’t...
问题详情： HumansmaynothavelandedonMars(火星)justyet,butthatisn’tstoppingaEuropeancompanyfromdevisingaplantosendfourpeopletotheRedPlanetwithinthenextfewyears.Thisproject,calledMarsOne,aimstosendas...