钢筋冷加工中，（）钢筋适用于预应力混凝土结构中的预应力筋。 ["冷拉HPB235级","冷拉HRB335级","冷拉HRB400级","冷拉HRB435级","冷拉RRB400级"]
症见心胸痛如缩窄，遇寒而作，形寒肢冷，胸闷心悸，甚则喘息不得卧，舌淡，舌苔白滑，脉沉细或弦紧。证属（） ["心血瘀阻","痰阻心脉","心气亏虚","寒滞心脉","心肾阳虚"]
启动子是指（） ["转录区段的一个单位","转录起始点","翻译起始点","RNA-pol结合模板DNA的部位","远离结构基因能增强转录的序列"]
消毒并不是为了（） ["将病原微生物消灭于外环境中","切断传播途径","阻断传染病播散","杀灭所有微生物","控制医院感染"]
下列哪项是引起颅内压增高的病因（） ["颅内有肿瘤生长","脑室内脑脊液积留过多","颅腔内有急性出血","颅骨外生性骨瘤","脑血流量增加"]
怎样正确做出水盐代谢和酸碱失调的诊断？
