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The S-T analysis is a graphical approach to teaching process.
S-T分析是一种以图形的方法表示教学过程的分析法。
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T he process of biological evolution was very slow at first.
起初，生物进化的过程相当缓慢。
youdao
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T he process of biological evolution was very slow at first.
起初，生物进化的过程相当缓慢。
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