“一个推理只有形式正确，才能得出可靠的结论，这个推理结论不可靠，所以这个推理形式不正确。”这个假言推理使用了（）
A、正确的否定后件式B
暂无解析
________Tomhasdonereallyamazedeveryoneinhisclass.
WhichofthefollowingisNOTemphasizedbytraditionallinguists?
Wearepleasedtoinformyouthattheitemyourequestedcanbesupplied______stock.
Thejudgewhowas________tohisfavoritewascriticizedbymanypeople.
TheultimategoaloflearningaforeignlanguageinaGrammar-Translationclassroomistoenablethestudentsto______itsliterature.
