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You know everyone that has ever held a wrench is called an "engineer" in China right? Completely meaningless designation there.
Xi Jinping studied chemicistry at Qinghua Hu Jintao engineering at Qinghua Jiang Zemin electrical engineering at Shanghai Jiaotong Don't know what the state of education was like in China in those days, but I doubt it was just a question of holding a wrench to get a diploma.
