中国大运河在第38届世界遗产大会中被列入《世界遗产名录》。

据记载，春秋时期，吴王夫差为了进攻齐国，运兵运粮，征调大批民夫，在长江与淮河之间开凿一条运河，叫做“邗沟”。公元605年，隋炀帝征发百万民工，修造通济渠。同年又改造邗沟。608年，又征发河北民工百万开凿永济渠。610年疏通江南运河。至此，开凿大运河的工程基本完成。京杭大运河是我国古代劳动人民创造的一项伟大工程，是祖先留给我们的珍贵物质和精神财富，是活着的、流动的重要人类遗产。大运河促进了当时经贸的发展，瓷器、茶叶通过它转运到外贸港口，江南的丝织品通过它转运至西北丝绸之路，从海外进口的珠宝、香料和棉毛制品等也通过大运河辗转运往全国各地。大运河不仅促进了两岸几十座城镇的发展和繁荣，还培育了市民社会，诞生了资本主义萌芽。在两千多年的历史进程中，大运河为我国经济发展、国家统一、社会进步和文化繁荣做出了重要贡献，至今仍在发挥着巨大作用。

运用文化生活相关知识，分析说明中国大运河被列入世界遗产名录的文化价值。

如图为硬脂酸甘油酯在碱性条件下水解的装置图。进行皂化反应时的步骤如下：

B

    I have a twin brother, Bob. He is taller than me. His hair is shorter than mine. Many people think we must have many things in common. But in fact this is not true. Bob is more outgoing than me. When my parents' friends come to our house, Bob often sits there and talks to them. But I often sit there and say nothing. Bob likes reading, cooking and drawing. I just like swimming and playing basketball. He has more hobbies than me, but he is not as athletic(擅长运动的) as me. Because Bob does better than me at school, my mom often says to me, “Bob is younger than you, but he can get better grades, you should learn from him.” We both like eating fast food and listening to music.

解放战争时期，根据敌我力量对比变化情况（见下表），中共中央决定（ ）