专四

单选题 Scientists generally agree that the Earth's climate will warm up over the next 50 to 100 years __________ it has warmed ir the 20,000 years since the Ice Age．

A．as long as
B．as much as
C．as soon as
D．as well as

参考答案：B进入在线模考
B。科学家们普遍认为地球的温度在未来50&100年上升的程度会和它自冰河世纪起两万年间上升的程度相当。
考查比较结构。as much as意为“和……一样多”，符合句意。

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