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【单选题】
已知直线a、b、c及平面α,β下列命题中正确的是 ( )A.
若m∥α, n Ìα,则m∥n
B.
若m⊥n , n Ìα, 则m ⊥α
C.
若α∥β, mÌα, n Ìβ则m∥n
D.
若m⊥β, mÌα,则α⊥β
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A.
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B.
coincidence.
C.
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D.
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A.
its ... those
B.
the ... which
C.
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D.
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【单选题】The unique point at which the supply and demanded curves intersect is called
A.
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B.
an agreement
C.
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D.
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【单选题】The unique point at which the supply and demand curves intersect is called
A.
market unity.
B.
an agreement.
C.
cohesion.
D.
equilibrium.
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