单选题 In order to make the earth a better place for us to live in, we should try our best to perpetuate all species.
A. perplex B. persecute C.preserve D. prosecute

【正确答案】 C
【答案解析】[解析] 划线词perpetuate“使永存，使不朽”。A项perplex“困惑”；B项persecute“迫害”；C项preserve“保护，保存”；D项prosecute“告发，起诉”。C项与划线词语意最为接近。