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【多选题】
板块构造学说的基本理论包括?( )A.
垂向上,地球上层包括刚性岩石圈和塑性软流圈两部分
B.
侧向上,岩石圈板块内部稳定,边缘为构造活动带
C.
板块在地表做大规模水平运动,新生和消亡相互抵消
D.
板块运动的动力主要来自地幔对流
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