问题
单项选择题
1997-2008年，重庆市进出口总值增长了（）
A．343%
B．421%
C．4.67倍
D．4.75倍
答案
参考答案：C
解析：
2008年重庆市进出口总值为95.21亿美元，1997年为16.78亿美元，增长了(95.21-16.78)÷16.78=4.67倍，应选择C。
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1997-2008年，重庆市进出口总值增长了（）
A．343%
B．421%
C．4.67倍
D．4.75倍
参考答案：C
解析：
2008年重庆市进出口总值为95.21亿美元，1997年为16.78亿美元，增长了(95.21-16.78)÷16.78=4.67倍，应选择C。
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