Oneof________man'schallengesistok

发布时间：2020-07-11 01:49:58

One of ________ man's challenges is to keep the balance of ________ nature．













A.a; the












B.the; a











C./; the











D./;/

网友回答

D
以上问题属网友观点，不代表本站立场，仅供参考！