Compared to other mammals, humans have a relatively long life______.A、lengthB、e

游客2024-01-17  19

问题 Compared to other mammals, humans have a relatively long life______.

选项 A、length
B、extension
C、expense
D、span

答案 D

解析 本题考查近义词辨析。length“长度、范围”;extension“延伸”;expense“开支、花费”;span“注意力、寿命”,常构成life span“寿命,生命周期”。故选D。
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