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問題詳情：1.Theworld’spopulation_______.A.willreach7billionintheendB.reached7billionbytheendof2011C.reached7billionbefore20112.Whichcountryisthethirdmostpopulousintheworldby2050?A.China. ...
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Beijinghassetthecity’spopulation
問題詳情： Beijinghassetthecity’spopulation________at23millionby2020duetowaterscarcityandbigcitydiseasessuchastrafficjam.A.budget B.ceiling ...