A:to take; to go
B:to be taken; to go
C:to take; going
D:to be taken; to be going
实现民族团结和国家统一的文化基础是( )
唐末农民起义的领导人是( )
如图,AB∥CD∥EF,那么∠BAC+∠ACE+∠CEF=( )
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