下列程序运行时输出的结果是( )。 Private Sub Form_Click() Dima a=Array("天天向上"，"清华大学"，"天上人间"，"程序设计") forI=Lbound(a，1) to Ubound(a，1) ifleft(a(i)，1)="天"then print a(i)； nextI End Sub A: 天天向上 B: 天天向上天上人间 C: 出错信息 D: 天天向上清华大学天上人间程序设计

Passage1<br/>ThehumanraceisusinguptheEarth'sresourcesfasterthaneverbefore,accordingtoanewreportbytheUnitedNationsPopulationFund.“Environmentaldevastationisnotsimplyawasteof<spanstyle="text-decoration:underline;">1</span>,itisathreattothecomplexstructuresthat<spanstyle="text-decoration:underline;">2</span>humandevelopment,”saysthereport.<spanstyle="text-decoration:underline;">&nbsp;3</span>attentionmustbepaidtofinda（n）<spanstyle="text-decoration:underline;">&nbsp;4</span>betweenhumanandenvironmentalneeds,itsays.<br/>Thereport,StateoftheWorldPopulation2001,saysthatwatersuppliesandagriculturallandsarecoming<spanstyle="text-decoration:underline;">&nbsp;5</span>suchincreasingpressurethat,ifleft<spanstyle="text-decoration:underline;">&nbsp;6</span>,ourplanetwillnotbeabletosupportusinfutureyears.Overthepast70years,theworld’spopulationhastripledto6.1billionpeople,<spanstyle="text-decoration:underline;">&nbsp;7</span>water-useincreasingsix-fold,saysthereport.Already508millionpeoplelivein31countriesthatlackwater.Andtheproblemislikelyto<spanstyle="text-decoration:underline;">&nbsp;8</span>astheglobalpopulationis<spanstyle="text-decoration:underline;">&nbsp;9</span>torisetoeightbillionby2025.<br/>By2050,predictsthereport,4.2billionpeoplewillbelivingincountriesthatcannotmeetpeople'sdaily<spanstyle="text-decoration:underline;">&nbsp;10</span>needs.Uncleanwaterandpoorsanitationalreadykillsover12millionpeopleeveryyear.Foodproductionisalso<spanstyle="text-decoration:underline;">&nbsp;11</span>byenvironmentalproblems,saysthereport.“To<spanstyle="text-decoration:underline;">&nbsp;12</span>thefuturepopulationandimprovetheirdiets,theworldwillhavetodoublefoodproduction,”itsays.“Butsinceavailablecroplandis<spanstyle="text-decoration:underline;">&nbsp;13</span>,mostproductionwillhavetocomefromhigher<spanstyle="text-decoration:underline;">&nbsp;14</span>ratherthannew<spanstyle="text-decoration:underline;">&nbsp;15</span>.”<br/>Accordingtothereport,globalpovertycannotbe<spanstyle="text-decoration:underline;">&nbsp;16</span>without<spanstyle="text-decoration:underline;">&nbsp;17</span>theenvironmentaldamagecausedbytheseincreasesinconsumptionandpopulation<spanstyle="text-decoration:underline;">&nbsp;18</span>.Toreducetheburdenontheplanet,thereportsuggests,alleffortsshouldbe<spanstyle="text-decoration:underline;">&nbsp;19</span>toimproveeducationandhealthcare,asthiswould<spanstyle="text-decoration:underline;">&nbsp;20</span>reducepopulationgrowth.<br/>1.A.facilitiesB.resourcesC.reservesD.provisions<br/>2.A.supportB.foundC.retainD.advocate<br/>3.A.IntensiveB.IntenseC.EmergentD.Urgent<br/>4.A.equationB.tradeoffC.balanceD.axis<br/>5.A.underB.intoC.belowD.beyond<br/>6.A.unnoticedB.behindC.aloneD.unchecked<br/>7.A.inB.withC.byD.above<br/>8.A.aggravateB.heightenC.declineD.worsen<br/>9.A.projectedB.speculatedC.intendedD.assessed<br/>10.A.luxuriousB.utmostC.intrinsicD.basic<br/>11.A.affectedB.effectedC.reflectedD.generated<br/>12.A.containB.lodgeC.furnishD.accommodate<br/>13.A.shrinkingB.diminishingC.contractingD.waning<br/>14.A.outputsB.turnoversC.yieldsD.harvests<br/>15.A.cultivationB.productionC.farmingD.plowing<br/>16.A.lightenedB.releasedC.elevatedD.alleviated<br/>17.A.reversingB.invertingC.upsettingD.disregarding<br/>18.A.standardsB.indexesC.normsD.levels<br/>19.A.triedB.takenC.doneD.made<br/>20.A.ineffectB.inturnC.inpartD.byturns