Choose the correct one for the following blank.
					문제풀이 모드
										
					
					0
															
						
						
						정답률 : -					
				
			Choose the correct one for the following blank.

5,180[kHz]
2,182[kHz]
518[kHz]
218[kHz]
			채점하기
		
		
					
		
					
		
		
		
	









