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【12-2】職業健康版 毎日一投

2016-12-02View Original

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この投稿は最後に阿川によって2016-12-5 13:01に編集されました。【12-2】職業健康版 毎日一投 今では子供たちがスマホを使うのも非常に一般的な現象です。では、子供がスマホを使うのに適切な時間はどのくらいだと思いますか?
Reply #22016-12-02
子供がスマホを使うことは、学習や健康に深刻な影響を与えます。
Reply #32016-12-02
スマートフォンは子供の目に最も悪影響を与え、1回あたり30分を超えない方が良いです。

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