问题补充:
单选题Loulan,onceasmall,wealthycommercialcity,isbelievedbymanypeople___________overgraduallybysandstormsfromAD200toAD500.A.coveredB.was coveredC.to be coveredD.to have been covered
答案:
D
时间:2018-08-24 01:11:54
单选题Loulan,onceasmall,wealthycommercialcity,isbelievedbymanypeople___________overgraduallybysandstormsfromAD200toAD500.A.coveredB.was coveredC.to be coveredD.to have been covered
D