全球旧事资料 分类
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6
fThepopulatio
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populatio
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g
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ly250
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umber
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4
500millio
.Butatthebegi
i
gofthe
5ce
turythe
worldspopulatio
wasabout1700millio
.I
1970this
umberwas3600
millio
.I
1990the
umberwasfivebillio
.A
6reportsaysthatthe
worldpopulatio
will
7sixbillio
bythee
dofthe20thce
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(4)
7
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(5)
8
fEverydaysomepeoplearekilledwhiletheyarecrossi
gtheroads.1ofthesepeopleareoldpeoplea
dchildre
.Oldpeopleareofte
killedbecausetheyca
tseeor2verywell.Childre
arekilledbecausetheyare
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