Scientists generally agree that Earth’s climate will warm up over the next 50 to 100 years _________ it has warmed in the 20,000 years since the Ice Age.
A.as long as B.as much as C.as soon as D.as well as
选B
Scientists generally agree that Earth’s climate will warm up over the next 50 to 100 years _________ it has warmed in the 20,000 years since the Ice Age.
A.as long as B.as much as C.as soon as D.as well as
选B