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***在历年贺词里,24次提改革,让人民生活得更加幸福美满;4次提反腐,纯净政治生态;8次提和平,共建人类命运共同体。表述有变,但不变的是***全面建成小康社会爱民为民之心、共同发展维护世界和平之心。从哲学角度看,这一变与不变( )
①体现了辩证的否定是事物发展和联系的环节
②表明人们可以根据主观需要建立新的联系
③事物的绝对运动与相对静止的统一
④应在否定一切中推动事物的发展
已知正比例函数y=kx,当x=﹣3时,y=6.那么该正比例函数应为( )
在2L密闭容器中,发生3A(g)+B(g)⇌2C(g)的反应,若最初加入A和B都是4mol,A的平均反应速率为0.12mol•L﹣1•s﹣1,则10s后容器中B的物质的量是( )
兰兰第____名,冬冬第____名,婷婷第____名,丁丁第____名.
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