- 问题详情:Whyyoumaywonder,shouldspiders(蜘蛛)beourfriends?Becausetheydestroysomanyinsects(昆虫),andinsectsincludesomeofthegreatestenemiesofthehumanrace.Insectswouldmakeitimpossibleforustoliveintheworld;theywoulddevourallourcropsandkillouranimals,ifitwerenotfort...
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