凸透镜甲的焦距为10cm，凸透镜乙的焦距为20cm，把同一个物体分别放在甲、乙前25cm处，则通过两个凸透镜都能在光屏上成清晰的像，下列说法正确的是 （  ）

①规划制定并不完全依赖于客观条件，做好规划就能搞好新区建设

②符合规律的科学规划，能够指导新区建设取得理想的成果

③规划具有目的性和主动创造性，能够创造一个理想美好的新区

④新区建设是有意识、有目的的实践活动，离不开科学规划的引领

C

    Hello! My name is Jack.I am from England.Now I am in China with my parents.I like China.I like Chinese food，too.I have breakfast at home.I eat an egg，some bread and porridge(粥) for breakfast.I don't like milk.I have no time to go home for lunch，so I have it at school.The lunch at school is very good.I often have noodles and dumplings.Noodles are my favourite food. Sometimes I have different foods for lunch.I eat rice，meat and vegetables.I always go home early in the afternoon.Then I do my homework.I have supper with my parents.Sometimes we go out to have dinner with our friends.We are happy in China.