00000nz a2200000n 4500 001 KSH2002032603 005 20021124155742 008 021124 n azknn|abn |a a|a | 150 ▼a다태[多胎]▲ 550 ▼a난자(세포)[卵子]▲ 550 ▼a포유류[哺乳類]▲