A.10°~20° B.20°~30° C.30°~40° D.40°~55° E.50°~60°
左側(cè)主支氣管長(zhǎng)約 ( )
A.1.5~2cm B.5~6cm C.4~7cm D.10~13cm E.7~8cm
A.存儲(chǔ)系統(tǒng) B.顯示設(shè)備 C.?dāng)?shù)據(jù)庫系統(tǒng) D.通訊網(wǎng)絡(luò)系統(tǒng) E.圖像采集裝置