题目内容

【题目】The of printing helped to spread the knowledge.

A. invention B. experience C. decision D. reason

【答案】A

【解析】句意：印刷术的发明帮助传播知识。A. invention 发明； B. experience 经历，经验； C. decision 决定； D. reason原因，理由；根据句意故选A

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