who还是which？
东方红英语工作室（dfhyy111）第二节（共10小题；每小题15分，满分15分）阅读下面短文，在空白处填入1个适当的单词或括号内单词的正确形式。I’mnotsure61.______ismorefrightened，meorthefemalegorilla（大猩猩）thatsuddenlyappearsoutofnowhere.I’mwalkingonapathintheforestintheCentralAfricanRepublic.Unexpectedly,I’mface-to-facewiththegorilla,whobeginsscreamingat62.______topofherlungs.Thatmakesherbabyscream,andthena400-poundmaleappears.Hescreamsthe63.________(loud)ofall.Thenoiseshakesthetreesasthemalebeatshischestandchargestowardme.Iquicklylowermyself,duckingmyheadtoavoid64._________(look)directlyintohiseyessohedoesn'tfeel65.__________(challenge).MynameisMireyaMayor.I’ma66._________(science)whostudiesanimalssuchasapesandmonkeys.Iwassearching67.________thesethreewesternlowlandgorillasI’dbeenobserving.Noonehadseenthemforhours,andmycolleaguesandIwereworried.WhenthegorillasandIfrightenedeachother,Iwasjustgladtofind68.________(they)alive.Truetoagorilla’sunaggressivenature,thehugeanimal69.__________(mean)menorealharm.Hewasjustsaying:“I’mkingofthisforest,andhereisyourreminder!\"Oncehismessagewasdelivered,heallowedme70._________(stay)andwatch.Keys:
61.who?which?63.loudest65.challenged67.for69.meant62.the64.looking66.scientist68.them70.tostay请看以下两个依据，自然就可知答案。APracticalEnglishGrammar牛津实用英语语法(第四版)的说法：MichaelSwan著牛津英语用法指南(第三版)的说法：
因篇幅问题不能全部显示，请点此查看更多更全内容