题目

—Could you tell me _________? —Sure. A story book. A . when did your friend give it to you B . what did your friend give you C . how your friend got to the supermarket D . what your friend gave you 答案：D14．已知直线m，n不重合，平面α，β不重合，下列命题正确的是（　　）A．若m?β，n?β，m∥α，n∥α，则α∥βB．若m?α，m?β，α∥β，则m∥nC．若α⊥β，m?α，n?β，则m⊥nD．若m⊥α，n?α，则m⊥n