解放思想,就是使思想和实际相符合,使主观和客观相符合,就是实事求是。
有先兆的偏头痛每次发作一般持续(未经治疗或治疗无效者) ["A.4~72小时","B.3~5天","C.1~3分钟","D.1~3小时","E.4~72分钟"]
在偏头痛的主要类型中最常见的类型是 ["A.基底型偏头痛","B.偏头痛持续状态","C.复杂型偏头痛","D.有先兆的偏头痛","E.无先兆的偏头痛"]
偏头痛病人有家族史者约占 ["A.5%","B.80%","C.40%","D.60%","E.20%"]
选择袋收尘器滤袋主要考虑哪些因素?
什么是“正常菌群”?什么是“菌群失调”?