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[问题1]肺心病病人出现吸呼衰竭未经治疗时,下列哪项是不符合的? A明显紫绀;B PaCO_260mmHg,C pH7.36;D急性呼吸道感染;E PaO_295mmHg。[问题2]抗原脱敏治疗支气管哮喘的机理是: A扩张支气管;B抑制生物活性物质的释放;C抑制胆碱能神经受体;D抑制吸呼中枢;E产生IgG阻止IgE与抗原结合。
[Question 1] In patients with pulmonary heart disease respiratory failure without treatment, which of the following is not? A significant cyanosis; B PaCO_260mmHg, C pH7.36; D acute respiratory tract infection; E PaO_295mmHg. [Problem 2] The mechanism of antigen desensitization in bronchial asthma is that: A dilates bronchial tubes; B inhibits the release of bioactive substances; C inhibits cholinergic nerve receptors; D suppresses the respiratory center; and E produces IgG to prevent IgE binding to the antigen.