Almanacs in simple form have been known from the invention of writing.from—since

游客2024-11-18 5

问题 Almanacs in simple form have been known from the invention of writing.

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答案 from—since

解析译文：简单形式的年鉴从书写发明以来就已经为人所知了。
分析：考查词汇。since和from常易混淆。由have been known知道此句是现在完成时态．应想到时间状语用since引导，不能用from。

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