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ムスリム商人の帆船→＿＿＿＿船
中国商人の帆船→＿＿＿＿船
ヨーロッパ帆船(大航海時代以前＝14cまで)→＿＿＿＿船

世界史

Optimized studying based on the forgetting curve vastly improves memorization. - What is reminDO?

Memorize 1

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