阅读理解

    It is Sunday today. It is my grandma's birthday. Father, mother and I go to visit her.

    She lives with my uncle. In the morning we buy a birthday cake and some fruits and go to her house at ten o'clock.

    We spend about half an hour getting there. My grandma and uncle are very glad to see us. We give the presents to grandma and say“Happ y birthday to you! ”She is very happy. Then we sit down to talk. My uncle can cook.

    The meal is very nice. We all like it very much. After lunch, I play with my uncle. At four o'clock, we say goodbye and go home.

If the cost of the spaceships is ____ (加以考虑), the movie cost billions of dollars to make.

时代特点会在社会生活的各个方面留下烙印，人们所取的名字也能折射出不同时期的历史情况，按先后顺序排列下列名字所反映的新中国的历史进程，正确的是（   ）

①马文革         ②李援朝

③张跃进         ④毛建国

A、B两物体质量相等，温度均为10℃；甲、乙两杯水质量相等，温度均为50℃．现将A放入甲杯，B放入乙杯，热平衡后甲杯水温降低了4℃，乙杯水温降低了8℃，不考虑热量的损耗，则A、B两物体的比热容之比为（　　）