이 건물에는 범죄 예방을 위해 CCTV가 여러 대 ( ) 있다.
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정답: A. 설치되어
How to solve: To prevent crime, CCTV needs to be 'installed'. '설치되다' means 'to be installed'.
Choice analysis (EN):
A — '설치되다' means 'to be installed', which is correct for CCTV.
B — '사용되다' means 'to be used', but CCTV is first installed and then used. The context implies the physical presence.
C — '고쳐지다' means 'to be repaired'. This is not relevant to the initial placement for crime prevention.
D — '버려지다' means 'to be thrown away'. This is the opposite of what's needed for crime prevention.
사고가 난 후에 경찰은 CCTV ( )을/를 꼼꼼히 살폈다.
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정답: B. 영상
How to solve: When an accident occurs, police examine the 'video footage' from CCTV. '영상' refers to video.
Choice analysis (EN):
A — '소리' means 'sound'. While some CCTVs record sound, the primary output is visual.
B — '영상' means 'video footage' or 'image'. This is the most appropriate term for what police would examine from a CCTV.
C — '냄새' means 'smell'. CCTV does not record smells.
D — '맛' means 'taste'. CCTV does not record tastes.
CCTV는 가게 안의 모든 움직임을 빠짐없이 ( ) 준다.
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정답: A. 기록해
How to solve: CCTV's function is to 'record' all movements without missing anything. '기록하다' means 'to record'.
Choice analysis (EN):
A — '기록하다' means 'to record'. This accurately describes what a CCTV does.
B — '설명하다' means 'to explain'. CCTV doesn't explain.
C — '발표하다' means 'to announce' or 'to present'. CCTV doesn't announce.
D — '전달하다' means 'to deliver' or 'to convey'. While it conveys images, '기록하다' is more direct for its function of saving data.
밤에는 CCTV 덕분에 거리가 더 ( ) 느껴진다.
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정답: B. 안전하게
How to solve: CCTV's purpose is to enhance safety. Therefore, a street feels 'safer' because of it. '안전하다' means 'safe'.
Choice analysis (EN):
A — '위험하게' means 'dangerously'. CCTV is installed to reduce danger, not increase it.
B — '안전하게' means 'safely'. This is the intended positive effect of CCTV on public perception.
C — '복잡하게' means 'complicatedly' or 'crowded'. CCTV does not make a street feel more complicated or crowded.
D — '조용하게' means 'quietly'. CCTV has no direct effect on the quietness of a street.
경찰은 용의자를 찾기 위해 주변 CCTV를 ( ) 조사했다.
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정답: C. 꼼꼼히
How to solve: To find a suspect, the police would need to examine CCTV footage 'carefully' or 'thoroughly'. '꼼꼼히' means 'carefully' or 'thoroughly'.
Choice analysis (EN):
A — '간단히' means 'simply' or 'briefly'. This is insufficient for finding a suspect.
B — '급하게' means 'hurriedly'. While urgency might exist, the investigation itself needs to be thorough.
C — '꼼꼼히' means 'carefully' or 'thoroughly'. This is essential for a detailed investigation using CCTV footage.
D — '대충' means 'roughly' or 'carelessly'. This is the opposite of what's required to find a suspect.
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