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VLCCとかのおっきー船が通るとき、次のアやイについてはどんな注意が必要なのかな？
(ア)気圧の変化、(イ)底質

1N(筆記) 運用

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

Memorize

A85rmd

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