第30题: [单项选择]As the displacement of a vessel increases, the detrimental effect of free surface(). A. increases B. decreases C. remains the same D. may increase or decrease depending on the fineness of the vessel's form 参考答案:B
第31题: [单项选择]上消化道大出血患者,治疗时最首要措施是() A. 补充血容量 B. 静脉滴注止血药 C. 制酸药 D. 西咪替丁静脉滴注 E. 冰盐水洗胃 参考答案:A