简介:Animportantscientificexpeditionin1958tookhundredsofscientiststoAntarctica,whichisalargecontinentatthesouthemtipoftheearth,andsurroundstheSouthPole,andmostofwhichiscoveredbysnowandice.Thegreaticesheetgoesonandon.AtsomeplaceinAntarcticatheiceismorethaathreemilesthick.ThePacific,AtlanticandIndianOceansringthecontinent.