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2009年10月31日早晨,我国著名科学家钱学森在北京逝世,享年98岁。回忆全国首届思维科学讨论会的召开,距今已经25年了。会议是1984
On the morning of October 31, 2009, Qian Xuesen, a famous scientist in China, died in Beijing at the age of 98. It has been 25 years since memorization of the first seminar on thinking science in our country. The meeting is 1984