国务院新闻办公室于2014年6月10日发表的《“一国两制”在香港特别行政区的实践》白皮书指出，1997年至2013年，香港本地生产总值年均实质增长3.4%，人均本地生产总值按美元累计增长39.3%。2013年，香港本地生产总值位居全球第35住，人均本地生产总值位居全球第7位。香港取得这些成就说明（ ）
A：我国必须坚持民族区域自治制度
B：“一国两制”方针具有强大生命力
C：我国已经跨越社会主义初级阶段
D：香港必须坚定不移走社会主义道路
请根据上边规定解答下列问题：
教室的门关不紧，常被风吹开。小明在门与门框之间塞入硬纸片后，门就不易被风吹开了。下列解释合理是（ ）
已知函数f（x）=ax2+x（a为常数），则函数f（x﹣1）的图象恒过点（ ）
I have a good friend at home. Her name is Mimi. She is white and yellow. She is very cute. I play with her when(当……的时候) I have time. She likes fish very much. When she is behind (在……之后) the sofa or in her box, you can’t see her. When I sit on the sofa, she sits with me. In the evening I do my homework at my desk, and she is on the desk. At that time I put her down(放下). Then she sits next to me. Is she a good friend of mine?
