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发展中国家的卫生状况英语作文
thisgraphtellsusthechangesinthelifeepectancyand
infantmortalityindevelopingcountriesbetween1960and1990.
wecanethatthelifeepectancyin1960wasabout40years
whereasin1990,eantime,
theinfantmortalityratedroppedfrom20off00to10off00.
,thanksto
theadvancesinscienceandmedicine,peoplearereceiving
ly,with
thedevelopmentofeconomy,peoplearebetterofftoday.
y,
owingtotheincreasingawarenessofenvironmentprotection,
arebeneficialtopeopleshealthwhichcertainlyprolonged
theirlifeepectancy.
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