单选题
公共英语三级
2009-08-06
The population which is top-heavy with older people poses a problem to
A.the government
B.the economy
C.the workforce
D.all of the above
参考答案
D
答案解析
由末段可知older people过分增加,会给三方面造成影响:the government,the economy以及the workforce。
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