题目内容:
WhyisWorldWarIthesaddestretronyminthecentury?Because__________. A.theworldwasunfortunatelyinvolvedinasecondwarlater
B.warscausedimmeasurablelosstopeopleoftheworld
C.thetwoworldwarsareverypainfultolookbackon
D.itisaveryspecialreminderofthatpartofworldhistory
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答案解析: