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阅读下面的材料,按要求作文。一、诺贝尔奖获得者、著名物理学家丁肇中教授为南航师生作了一场学术报告。按照惯例,一小时报告后,丁教授回答同学们提问。“您觉得人类在太空能找到暗物质和反物质吗?“”不知道。“”您觉得您从事的科学实验有什么经济价值吗?“”不知道。“”您
Read the material below and write the composition as required. First, the Nobel Prize winner and renowned physicist Professor Ding Yizhong made an academic report to the teachers and students of China Southern Airlines. According to the usual practice, Professor Ding answered questions from the students after an hour of reporting. “Do you think that humans can find dark matter and antimatter in space?” “I don’t know.” “Do you think that there is any economic value in your scientific experiments?” “I don’t know.” "You