スマホ持つ小学校高学年、半数超に 1時間以上で「成績ダウン」
https://mainichi.jp/articles/20250409/k00/00m/040/209000c
#mainichi_rss_etc_mainichiflash #社会 #速報
:rss: ニュース速報（総合） /
npub186…yj28s
2025-04-10 03:04:57
Author Public Key
npub1864yu693y6qdaa75jn8qpz4lmww2cntc9d6pdkxs4kscltpyqm6shyj28sPublished at
2025-04-10 03:04:57Event JSON
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