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知直线l、m、n及平面α,下列命题中的假命题是( ) A.若l∥m,m∥n,则l...
知直线l、m、n及平面α,下列命题中的假命题是( )
A.若l∥m,m∥n,则l∥n
B.若l⊥α,n∥α,则l⊥n
C.若l⊥m,m∥n,则l⊥n
D.若l∥α,n∥α,则l∥n
考点分析:
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