问题补充:
单选题Morebisonwerekilled.Thebisonpopulationisthought______from60milliontojustafewhundredbetween1850and1910.A.to have fallenB.having fallenC.to fallD.falling
答案:
A
时间:2020-12-29 15:41:06
单选题Morebisonwerekilled.Thebisonpopulationisthought______from60milliontojustafewhundredbetween1850and1910.A.to have fallenB.having fallenC.to fallD.falling
A