道德是依靠人们的内心信念、传统习惯和社会舆论来调整个人与个人、个人与社会之间关系的行为准则和规范的总和。()
参考答案:对
People who don't smoke have less____ of suffering from heart disease than those who do so. [ ]
A. potential
B. cause
C. hope
D. problem
按治疗前支气管哮喘病情严重程度分级,中度持续指(),夜间哮喘症状(),FEV1预计值()或()PEF()。