A-A+
Modern medical advances ______ the average lif
问题详情
Modern medical advances ______ the average life expectancy by several years.
A．expanded
B．spread
C．extended
D．enlarged请帮忙给出正确答案和分析，谢谢！
参考答案
正确答案：C
解析：extend“延伸，延续”；expand“扩大，膨胀”；enlarge“扩大，扩展”。
