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定语从句TheartoftheculturalperiodthatfollowedtheUpperPaleolithicalsoseemstoreflecthowpeoplegottheirfood.(H21)Aeroponics,atechniqueinwhichplantsaresuspendedandtherootsmistedwithanutrientsolution,isanothermethodforgrowingplantswithoutsoil.(H22)InEuropeittookalittlelonger,mainlybecausethereweremoresmallproducersforwhomthecostsofsoundwereprohibitive.(H12)KeepingthepriceofgrainlowwasaprimarygoaloftheDutchatatimewhentheycouldnotproduceenoughgraintoprovideforalltheirneeds.(H15)CattlewereintroducedfromAsia,asprobablyweredomesticsheepandgoats.(H14)abbreviationInfantsencodeinformationinthesamewayolderchildrenandadultsdo.(H27)TounderstandtheancientMayanpeoplewholivedintheareathatistodaysouthernMexicoandCentralAmericaandtheecologicaldifficultiestheyfaced,onemustfirstconsidertheirenvironment,whichwethinkofasjungleortropicalrainforest.(H29)
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本文标题：托福定语从句长难句
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