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24 (59ȸ ν ) ̴.
ڸ(46ȸ д籸 ڵ) "츮 °߱ⱸ(OECD) ط 26° ε 簡 2~3 ÷ ݺؼ ϴ 'ͺ ͺ' ȸ ε, ġΰ λġ ٺ̴" "̹ Ʋ ؾ Ѵ" ߴ.
δ Ȱ ô ش ϴ 簡 "Ȱ ô غ̳ ҵ å ϰڴ" ǥ, ð 帣鼭 ó ǰ Ÿ ҽ ݵ ʰ ϰ ִ.
2014 ı 츮 ÷ȴ. 106 217 þ. Ⱓ ǰ 62 93 1.5谡 ƴ.
δ ڴٰ ̹ ߴ. ڱ ' ' ' å' ٲ鼭 ȿ ƴ. ٲ å ϰ ٽ ϴ ̴.
23 ɽǿ ڵ ٱ () ټÿ ä ߰ߵ "(̵) ȯ ̾鼭 뽺 ߴµ, ڽ Ҹ ڸ ã ̺е ϰڴٰ β ȴ" " ý۵ ۵ Ǹ Ư ġ ʿ "̶ ߴ.
̿ Ǻ, . ش ó ' ' âϰ å ϰڴٰ Ѱ踦 غ ߿ ȸ ɻ Ʈӽ(litmus).
δ 길 ø ƴ϶, αʻȰ ϰ ȸ 簢 ߱ մå ߴ. ̷ ¿ ұϰ Ǻ ü ɷȴ.
Ǻ ü Ǵ ߾ο ü ɼ ū (18) ߴ. ̷ 1 .
ּ ȭô. ȭ 3 湮ϰ Ȯ ߴ. A ó õ, ʾҰ ȸ ߴ. 2 .
ÿ ԽŰ ʾ ' ־ ʴ ' ƴ. ߺ Ǻ 1 4 üε ⸦ ִµ ߴ. Ǻ ߴٸ з ִ.
Ǻδ ڴʰ 34 ɷ üⰣ ϴ ϰڴٰ ǥߴ.
ѱ 10Ⱓ ߴ. ٸ ̰, ûǿ ߸ ִ. ٰ ʻȰ̴. ʼڰ Ƿ ص û ϳ . ó ̿ Ѱ û ' 3 ' .
Ѿ ȸд 躴(ȸа) " ȸ о 195 ̸. Ը鿡 . ̷ ó ʿ 鿡 ձ ġ ü迡 簢밡 ϴٴ ְ ִ "̶ "̵鵵 ڽŵ ̸ ü ˷ ûߴٸ 120 Ƿ , ְ ־" Ÿ ߴ.
" 츮 ü ⺻ ε û ޱⰡ ƴٴ ƽ ִ" "̸ ε û ʾƵ ̴ Ǹ ȸ糪 ¸ ľ ɵ Ѵ" ߴ.
ǰд "̹ ȸ 踦 ä ϸ鼭 ֹε ϴ δ ʡ ֹ ̿ ǰ Űϴ 簢 ߱ ü谡 ʿѴ١ ߴ.
ιȸ ȯ(а) ̹ δ Ŀ ο 簢밡 ̶͡ ȸýۿ Ⱑ ϵǴ ãư ڸ ã ϸ ڡ ϸ ذȴ. ڸ ã ý ٲ Ѵ١ ߴ.
̾ " å , Ǻ ó ó , ȳ, ȫ ȭϴ ؾ Ѵ" ٿ.
ܱ ȸд (ðȹ) " ⺻ ̴. ڡ ϴ ҵ óϴ û ϴ 찡 ʴ" " ó ľ Ƽ ̵ ϴ ʿ䰡 ִ" ߴ.
ڴ "ȸý ȭ ü ü Ȯ뿡 ұϰ ̷ ſ Ÿ" " ʿ ֵ ʰ 鵿 ãư Ǻ Ȱ ȫ ȭϰڴ" ߴ.
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