A.50cmB.35cmC.20cmD.10cmE.1cm
A.質(zhì)量保證B.質(zhì)量監(jiān)督C.質(zhì)量檢驗(yàn)D.質(zhì)量?jī)?yōu)化E.質(zhì)量反饋
A.冠狀動(dòng)脈病變B.胸痛三聯(lián)征C.冠狀動(dòng)脈支架術(shù)后D.冠狀動(dòng)脈痙攣E.心肌橋