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如图是一正方体被过棱的中点M、N，顶点A和N、顶点D、C1的两上截面截去两个角后所得的几何体，则该几何体的正视图为（ ）
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高一上学期数学《》真题及答案
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如图中四个正方体图形
，
为正方体的两个顶点，M.，N.，P.分别为其所在棱的中点，能得出AB∥平面MNP的图形的序号是( )
A.①③B.①④
②③
②④
如图下列四个正方体图形中
B.为正方体的两个顶点，M.、N.、P.分别为其所在棱的中点，能得出AB∥平面MNP的图形序号是( )
A.①③
①④
②③
②④
在如图的正方体中M.N.分别为棱BC和棱CC1的中点则异面直线AC和MN所成的角为
30°
45°
60°
90°
下列四个正方体图形中
，
为正方体的两个顶点，M.，N.，P.分别为其所在棱的中点，能得出AB∥平面MNP的图形的序号是( ).
A.①③B.②③
①④
②④
一个正方体的边长为1一只蚂蚁从其一个角出发沿着正方体的棱形进直到经过该正方体的每一条棱为止经过一个顶
3
4
5
6
下列四个正方体图形中
B.为正方体的两个顶点，M.、N.、P.分别为其所在棱的中点，能得出AB∥平面MNP的图形的序号是( )
A.①③
①④
②③
②④
如图所示ABCD—A1B1C1D1是棱长为a的正方体M.N.分别是下底面的棱A.1B1B.1C1的中
下列四个正方体图形中A.B.为正方体的两个顶点M.N.P.分别为其所在棱的中点能得出AB∥平面MNP
如图棱长为a的正方体中M.为BC中点则直线D1M与平面ABCD所成角的正切值为若正方体的八个顶点都在
下列四个正方体图形中A.B.为正方体的两个顶点M.N.P.分别为其所在棱的中点能得出AB∥面MNP的
下列四个正方体图形中A.B.为正方体的两个顶点M.N.P.分别为其所在棱的中点能得出AB∥面MNP的
如图在下列四个正方体中AB为正方体的两个顶点MNQ为所在棱的中点则在这四个正方体中直线AB与平面M
如图中四个正方体图形
，
为正方体的两个顶点，M.，N.，P.分别为其所在棱的中点，能得出AB∥平面MNP的图形的序号是( )
A.①③B.①④
②③
②④
一个正方体的边长为1一只蚂蚁从其一个角出发沿着正方体的棱形进直到经过该正方体的每一条棱为止经过一个顶
3
4
5
6
在如图的正方体中MN分别为棱BC和棱CC1的中点则异面直线AC和MN所成的角为度.
如图正方体的棱长为1C.D.是两棱中点A.B.M.是顶点则点M.到截面ABCD的距离是_______
下列各图中AB为正方体的两个顶点MNP分别为其所在棱的中点能得出AB∥平面MNP的图形的序号是
如图在下列四个正方体中AB为正方体的两个顶点MNQ为所在棱的中点则在这四个正方体中直线AB与平面MN
一个正方体的展开图如图K.414所示B.C.D.为原正方体的顶点A.为原正方体一条棱的中点.在原正
下列四个正方体图形中AB为正方体的两个顶点MNP分别为其所在棱的中点能得出AB∥平面MNP的图形的序
①③
②③
①④
②④
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设函数fx＝则ff3的值为．
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A.①③B.①④ ②③ ②④
A.①③ ①④ ②③ ②④
A.①③B.②③ ①④ ②④
A.①③ ①④ ②③ ②④
A.①③B.①④ ②③ ②④
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