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M: Several days before July 28, 1976，many strange things happened in Tangshan. They were for an earthquake. But people lived there didn't think much of that. At 3: 42 am that day, the earth began , which destroyed almost all the city in fifteen terrible seconds. Many people, rescue workers and doctors, came those who under the ruins. Later that afternoon, another big earthquake hit the city. More people were killed or injured and more buildings fell .Very soon the army sent a lot of soldiers to help, and teams to dig out the trapped and to bury the dead. By and by things improved and the city began to again. With strong support from the government and the tireless efforts of the city's people, a new Tangshan upon the earthquake ruins.