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奖励发明是有利于国家富强的政策。最早提出“倘有能造如外邦火轮
奖励发明是有利于国家富强的政策。最早提出“倘有能造如外邦火轮
奖励发明是有利于国家富强的政策。最早提出“倘有能造如外邦火轮车,一日夜能行七八千里者,准自专其利,限满,准他人仿造”的近代文献是
(
)
答案
C
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