제목
2021.11.20 영재 프로그램-잎맥
글쓴이
관리자
작성일
2021년11월20일18:07:21
조회수
19
첨부파일
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칫솔로 나뭇잎을 두드려 잎맥이 보이게 한 후 잎맥을 관찰해요!
