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【简答题】
设α，β是两个不同的平面，l是一条直线，以下命题正确的是（ ） ①若l⊥α，α⊥β，则l β ②若l∥α，α∥β，则l β ③若l⊥α，α∥β，则l⊥β ④若l∥α，α⊥β，则l⊥β
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举一反三
【单选题】He is opposed to such a view that it is his intelligence and good luck that have ________ his success.
A.
contributed in
B.
led to
C.
come out
D.
resulted from
【简答题】有n个人围成一圈,顺序排号,从第1个开始报数(从1到3报数),凡报到3的人退出圈子,问最后留下的人是原来排在第几号
【单选题】Which of the following sentences is INCORRECT?
A.
He is a child, and must be treated as such.
B.
One such a grammar book is enough.
C.
I hope never to have another such experience.
D.
I have never seen such a beautiful building.
【简答题】相邻两个图层创建剪贴蒙版后,上面图层显示的形状受下面图层的控制。
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