欢迎来到中文知识站!
___________inthelegmadeitimpossibleformetowalkasfastasu...
问题详情:________anefficientlearner,youmusthavegoodstudystrategies.A.Tobe B.BeingC.Havingbeen D.Tohavebeen【回答】A[考查非谓语动词。句意:为了成为一个有效率的学习者,你必须有好的学习策略。分析句子结构可知,此处...
问题详情:Ithappenedonemorning20yearsago.ABritishscientistAlecJeffreycameacrossDNAfingerprinting:Heidentifiedthepatternsofgeneticmaterialthatareuniquetoalmosteveryindividual.Hisdiscoverychangedeverythingf...