2. 外语
  3. Advanced mammals such as monkeys, apes and humans have brains______from ancestors that took to living in the trees.

Advanced mammals such as monkeys, apes and humans have brains______from ancestors that took to living in the trees.

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问题 Advanced mammals such as monkeys, apes and humans have brains______from ancestors that took to living in the trees.
选项 A、derived
B、progressed
C、terminated
D、advanced
答案A
解析 本题意为“像猴子、猿和人这样的高级哺乳动物都有头脑，他们都来源于喜欢在树上栖息的祖先。”derive的意思是“起源，源于”，符合题意。如：Many English words are derived from Latin．(许多英语词汇源于拉丁文)。其他三项progress“前进，进展”，terminate“使结束”，advance“推进，促进”都不正确。
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