1964年,一个知青在看钱学森的论文时,�现方程推导错了,就给钱学森写信,谁知钱学森不仅回了信,还说:“感谢您指出�的错误!”咱们先掂量掂量这 Template




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tomski1964年,一个知青在看钱学森的论文时,�现方程推导错了,就给钱学森写信,谁知钱学森不仅回了信,还说:“感谢您指出�的错误!”咱们先掂量掂量这 coloring