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, 4. 12. 泲û ϴ T/F ߴ.
Ư, 縦 ϱ 泲û ˼ ̿ܿ õȡƻ 3 1 ϵ Ͽ, Ϻθ ߴ.
Ҿ ˰ ɷ 4. 17. 泲û Ϳ ǹ ǽϴ ôῡ Ǹ .
ۿ 泲û û, ľó ǹ ü ġü, û 汳 ȫ ̴.
泲û 74 ˰Ͽµ ɺδ 20(27%), 30(20.3%), 40(17.6%), 50(12.2%), 60 ̻(8.1%), 10(4.1%) ̸, δ ѱ(67.6%), ܱ(32.4%) Ÿ.
ƿ ˿ ѷ Ͽ κ 泲 弭ڴ١ .
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Ѽ Դϴ.
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