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(-2,3) (2,-3) (3,-2)或(-2,3) (-2,3)或(2,-3)
)0个; ( )1个; ( )2个; ( )3个.
′D′的两个平行平面将长方体分为体积相等的三个部分,那么F.′D′等于( ) A.8 6 4 3
(-2,3) (2,-3) (3,-2)或(-2,3) (-2,3)或(2,-3)
(-2,3) (2,-3) (3,-2)或(-2,3) (-2,3)或(2,-3)
(-2,3) (2,-3) (3,-2)或(-2,3) (-2,3)或(2,-3)
(-2,3) (2,-3) (3,-2)或(-2,3) (-2,3)或(2,-3)
(-2,3) (2,-3) (3,-2)或(-2,3) (-2,3)或(2,-3)
(-2,3) (2,-3) (3,-2)或(-2,3) (-2,3)或(2,-3)
(-2,3) (2,-3) (3,-2)或(-2,3) (-2,3)或(2,-3)
(3,2) (-2,-3) (2,3)或(-2,-3) (3,2)或(-3,-2)
(-2,3) (2,-3) (3,-2)或(-2,3) (-2,3)或(2,-3)
(-2,3) (2,-3) (3,-2)或(-2,3) (-2,3)或(2,-3)
′D′的两个平行平面将长方体分为体积相等的三个部分,那么F.′D′等于( ) A.8 6 4 3