China is a mountainous country.Hills,mountains,and plateaus cover _______ of the total area.
C
暂无解析
Which of the following country is not a member of OECD?
Scientistsdoubtwhetherit’s________toregulateone’sbiologicalclockbydrinking.
Thehousewasquietinthenight,________theoccasionalcoughingfrommythroat.
Awell-knownexampleofthelargescaledestructionofanecosystemthroughvegetationremovaltoaccommodatetouristfacilitiesisthecaseofthe_______.
InEurope_______arethetwoleadingcontendersforaglobalreservationssystem.