For our homework, we had to prove the converse: if the light was off, and it's on now, prove that you flipped it.
作为课后作业，我们需要证明以下命题：如果灯过去是关着的，并且现在它是开着的，请证明有人按了开关我真的试着证明它了。我花了许多小时，试图证明这个命题。
Different people converse with the text differently. Some stay very close to the words on the page , others take off imaginatively from the words, interpreting, criticizing, analyzing and examining.
阅读中不同人对文字的反向思维是不同的。一些人紧贴着纸面文字，有些人在想象中超越文字地去翻译、批判、分析和研究。
Converse cutting off of pancreas and blood vessel repair were performed to raise resective rate.
逆向胰腺切断，血管修补提高切除率。
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