已知三条不重合的直线m,n,l 和两个不重合的平面α,β ,下列命题正确的是:( )
A.若m//n,nα,则m//α |
B.若α⊥β, αβ="m," n⊥m ,则n⊥α. |
C.若l⊥n ,m⊥n,则l//m |
D.若l⊥α,m⊥β, 且l⊥m ,则α⊥β |
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已知三条不重合的直线m,n,l 和两个不重合的平面α,β ,下列命题正确的是:( )
A.若m//n,nα,则m//α |
B.若α⊥β, αβ="m," n⊥m ,则n⊥α. |
C.若l⊥n ,m⊥n,则l//m |
D.若l⊥α,m⊥β, 且l⊥m ,则α⊥β |
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