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母亲先唱，祖母也加入进来。 她们一起唱，仿佛回到了少女时代。...
NOWADAYS, the elderly are getting better at arranging their days to suit themselves. They are beginning to pay more atte......
a complete algorithm to design 4-band orthogonal wavelets with beautiful structure from 2-band orthogonal wavelets is pr......
试验探讨了北京鸭β-catenin基因的生物学功能，为进一步研究该基因对鸭皮肤毛囊的影响奠定基础。以北京鸭胚胎皮肤组织为材料，根据Ge......
引入大国竞争以达到战略均衡与通过“东盟方式”建立地区合作机制，这是冷战结束后东亚地区政治经济合作进程中并行的两种战略，大国竞......
