已知正n边形的一个内角为135°，则边数n的值是（　　）

我国首轮月球车命名为“玉兔号”，这一命名既体现了中华民族的传统文化，又反映了我国和平利用太空的宗旨。传说中嫦娥怀抱玉兔奔月，玉兔善良、纯洁、敏捷的形象与月球车的构造、使命既形似又神似。这一命名说明（    ）

①精神文化离不开物质载体

②传统文化对社会发展具有促进作用

③文化是经济和政治的反映

④文化在综合国力竞争中的地位和作用越来越突出

    Mike is a factory worker. He is often very tired after a day's work. His wife, Jenny, has no job, so she stays at home to cook the meals. Every day he can have his dinner when he gets home from his factory.  

    One day, Mike came home very late because he was very busy in the factory. He was very hungry when he got home. He was not happy when he found his dinner was not ready. He was very angry with his wife. He shouted at her, "I'm going out to eat in a restaurant." "Wait for five minutes，" said his wife. "Why? Do you think that dinner will be ready in five minutes?" asked Mike. "Of course not," she answered. "But I can be ready to go with you in five minutes."