简述新奥法(喷锚支护)的基本原理?
用于治疗心衰的磷酸二酯酶Ⅲ抑制剂: ["A.维拉帕米","B.米力农","C.卡托普利","D.酚妥拉明","E.哌唑嗪"]
治疗老年性哮喘特别有效的药物是: ["A.异丙肾上腺素","B.倍氯米松","C.沙丁胺醇","D.异丙托溴胺","E.色甘酸钠"]
达到防治效果的作用是: ["A.治疗作用","B.药物作用的选择性","C.副作用","D.毒性反应","E.继发反应"]
多塞平阻断: ["A.5-HT受体","B.NA再摄取","C.肌醇生成","D.DA受体","E.N胆碱受体"]
地下建筑的主要工程地质问题有哪些?