材料一：“丝绸之路经济带”是在古丝绸之路概念基础上提出的一个新的经济发展战略。新疆处于古丝路北、中、南三条大道交汇之地，成为新丝路上的核心区。

新疆具有地理区位优势，与8个国家接壤、东联内地、西通欧亚。资源优势，石油天然气、煤炭及各类矿产资源丰富。而且是通往中亚的国际能源资源通道。历史文化优势，新疆是东西方文化的交汇点，形成了独特的地域文化和民族文化。政策优势，19省市对口支援、国家财税、金融、产业政策优惠。

材料二：文化是贸易交流合作的第一壁垒，文化交流对贸易发展起着至关重要的作用。“新丝绸之路经济带”发展首先要解决的是和亚欧文化的交融问题，为经济发展打开第一道壁垒。

    Tom and Mike had a very good time last Sunday.That morning，they1at six o'clock and dressed(穿衣)themselves.2having breakfast，they went to the park.It's in the centre of the city. In the park.there were a lot of nice flowers.Mike wanted to 3one，but Tom stopped(阻止)him.He told Mike it was not.4to pick flowers.Then they went to the lake.By the lake,they saw a small5.They jumped into it and started a tour on the lake.Two hours6,they left the lake and walked up the hill(小山)near the lake.They got to the top at half past eleven.There they had their lunch.7did they have for lunch?Eggs，bread and oranges.In the afternoon,they 8home.When their mother asked them about the morning，9answered，"It was great.We10ourselves(我们自己)all the morning."

一定质量的某物质充分燃烧，消耗了64g O₂，同时只生成44gCO₂和36gH₂O，则该物质中（）

甲、乙、丙三人是朋友，他们每隔不同天数到图书馆去一次，甲3天去一次，乙4天去一次，丙5天去一次.有一天，他们三人恰好在图书馆相会，那么至少再过多少天他们才可能再在图书馆相会？