Scientists say human activity contributes to climate change, but they do not agree on the rate_______ climate change may be developingA.with whichB.with thatC.at whichD.at that
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B解析试题分析：此处with是介词，其后是介词的宾语从句，that在宾语从句中不作成分，没有意思，只起连接作用。句意：科学家们说人类活动导致气候变化，但是他们不同意气候变化的速度。考点：考查宾语从句的连接词。