First, there is an observational trend, represented by the Ionian physicists and Democritus, which proposed specific substances operating in our environment as the basis of life. 第一個(gè)是由愛(ài)奧尼亞物理學(xué)家和德謨克利特提出的觀(guān)察傾向，它提出我們環(huán)境中存在的特別物質(zhì)是生命的根本。
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