Every street or every store is now filled with cell phone users, ranging in age from eight to eighty. However, if we consider rapidly developing technology, an alternative apparatus might replace the cell phone soon and make it ____________.
- ①obsolete
- ②extensive
- ③prevalent
- ④competent
정답 ①
출처: 인사혁신처 공개 기출(공공데이터포털, 이용허락 제한 없음)