“天下之理，不外因果”。下列历史事件因果关系对应正确的是（  ）

①秋收起义失败——创立井冈山革命根据地   ②五次反围剿遭受失败——红军长征

③巴黎和会——五四运动                   ④南京大屠杀——国民政府迁都重庆

    Last year Jeff left school. He came to Guangzhou to find a 1. He went to one company after another company. But no one wanted him. Then he had 2 money. He had to go back to his small town. 3 he came to the station. He 4 very sad and tired. It was very late at night and the station was 5 of people. They were waiting to buy tickets of the last train. He bought the 6 ticket, so he was very happy.

    At that time, a woman 7 a crying baby walked to him. She asked him to 8 her the ticket. He gave her the ticket. He thought they needed it more than he. After the train left, he sat on the bench and didn't know 9 to go. Just then an old man came and said, "Young man, I saw what you did to help the woman. I have a big company. I need a good young man like you. Would you like to 10for me?"

圆的直径是半径的2倍，半径是直径的一半．