下面的示意图是根据《中国经济年鉴（1949～1959年）》中的有关数据编制的。导致示意图所示状况的主要原因是1949～1957年中国经济主要数据平均增长率示意图（单位：%）
A．国家投资的侧重点差异
B．新中国生产关系的变革
C．对资本主义改造的创新
D．计划经济管理体制的形成
答案：A
题目分析：根据材料数据可知，这一时期中国的重工业发展尤为迅速，而农业、轻工业发展速度明显不及重工业，联系1953年新中国实行“一五计划”，强调优先发展重工业，因此选A。BCD虽然符合这一时期新中国的历史情况，但是不是对材料中现象的最正确分析。
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| Jim Green has been in China for more than two years. He has been to many interesting 1 in Beijing, but he has not yet been to many other parts of 2 . Last week he went to Mount Emei in Sichuan with his 3 . Many people like to travel by 4 , but the Greens think that travelling by train is the best. It is much 5 and far more enjoyable than a rushed journey by air. They had a won-derful train ride to Chengdu 6 they went on to Mount Emei by bus. The train was quite nice and tidy, and there weren't too many people in 7 sleeping car. The Greens could stand up and 8 around. It was a long journey, 9 none of them felt tired. They kept 10 the beautiful things out of the window. They talked, laughed and played cards. The conductor kept coming to give them hot water and 11 them newspapers. People nearby 12 with each other. A young man tried to speak English with Mr and Mrs Green. Jim thought the train was like a big moving party. He went to sleep quite 13 . He enjoyed listening to the sound of the running train and then fell asleep. When Jim woke up the next morning, the train was already 14 Chengdu. His train ride seemed really 15 , but his memory (记忆) of the pleasant journey will last long. | ||||
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