裂解汽油加氢装置预分馏系统停车后先倒空后泄压。
参考答案:对
_______ wonderful news report he wrote! All of us were proud of him.[ ]
A. What a
B. What
C. How
D. How a
治疗心室颤动最有效的措施是
A.静脉注射溴卞胺
B.胸外心脏按压
C.心腔内注射肾上腺素
D.静脉注射利多卡因
E.非同步电击复律