Modern medicine has increased man's life().
Modern medicine has increased man's life().
A、length
B、span
C、longtide
D、space
【正确答案】:B
【题目解析】:length一般指物体的长度;span跨度,范围;longitude经度;space空间,距离;life span指寿命。本题句意为:现代医学延长了人的寿命。因此应选B
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