A.乳腺小葉、腺泡 B.纖維(結(jié)締)組織、腺泡 C.乳管、脂肪、腺泡 D.乳管、乳腺小葉、腺泡
A.5% B.5%~10% C.10%~25% D.25%~30%
A.堅決的 B.模棱兩可 C.堅持原則 D.請求式