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快速阅读部分（北京新东方 张一鑫）
1. A）not be sustained in the long term
2. B）Intergenerational conflicts will intensify
3. D）politicians are afraid of losing votes in the next election
4. A）allow people to work longer
5. D）younger workers are readily available
6. B）large numbers of immigrants from overseas
7. B）They find it hard to balance career and family
8. take risks
9. have families
10. military service
