根据下列内容，回答191-195题。 Africanelephantshavebeenslaughteredatalarmingrateoverthepastdecade,largelybe-causetheyaretheprimarysourceoftheworld'sivory.Theirpopulationhasbeendwindledfrom1.3millionin1979tojust625,000today,andtherateofkillinghasbeenacceleratinginrecentyearsbecausemanyoftheolder,biggertuskedanimalshavealreadybeendestroyed."Thepoach-ersnowmustkilltimesasmanyelephantstogetthesamequantityofivory."explainedCurtisBohlen,SeniorvicepresidentoftheWorldWildlifeFund. Thoughitsrecordontheenvironmenthasbeenspottysofar,thegovernmentlastweektooktheleadinamajorconservationissuebyimposingabanonivoryimportsintotheUS.Themovecamejustfourdaysafteraconsortiumofconservationgroups,includingtheWorldWildlifeFundandWildlifeConservationInternational,calledforthatkindofaction,anditmadetheUSthefirstnationtoforbidimportsofbothrawandfinishedivory.Theban,saysBohlen,sendsaveryclearmessagetotheivorypoachersthatthegameisover. InthepastAfricannationshaveresistedanivoryban,butincreasinglytheyrealizedthatthedecimationoftheelephantherdsposesaseriousthreattotheirtouristbusiness.LastmonthTanza-niaandseveralotherAfricancountriescalledforanamendmenttothe102nationConventiononInternationalTradeinEndangeredSpeciesthatwouldmaketheivorytradeillegalworldwide.TheamendmentisexpectedtobeapprovedatanOctobermeetinginGenevaandtogointoeffectnextJanuary.Butbetweennowandthen,conservationistscontend,poachersmaygoonarampage,killingelephantswholesale,sonationsshouldunilaterallyforbidimportsrightaway.TheUSgov-ernmentbroughtthatargument,andbyweek'sendthetwelvenationEuropeanCommunityhadfollowedwithitsownban. Whichofthefollowingisthebesttitleforthepassage?___________
A.African Elephants and the Ivory Trade B.A Bid to Save the Elephant C.The Poachers D.Elephants in Danger正确答案B
