试述选择性α受体阻滞剂的药理作用。
参考答案:
选择性α变体阻滞剂的主要作用在前列腺、 * * 周围、膀胱逼尿肌中的α受体,减少排尿时的张力,促进排尿,减少残余尿。
材料质量检验的取样必须有随机性,不一定要有代表性。()
Despite (1) that alcoholic beverages may (2) , a leading medical expert is advising: don’t (3) just yet. Anybody who’s ever worked in a hospital sees the hospital is full of patients that have (4) disease, but the hospital is not full of patients that have disease related to cholesterol and (5) . In an (6) in the current New England Journal of Medicine, Dr. Goldberg of Columbia University said it is time to see (7) prevents heart disease. Such a study would give (8) to one group of heart disease patients and not to another, and see (9) . In the latest study, which followed (10) over a 12-year period, researchers found that those who drank (11) drinks per week (12) of heart attack by (13) compared to (14) . The lead author, (15) Kenneth Mukamal of Beth Israel Deaconess Medical Center in Boston, insists his study is (16) . For one thing, other studies have not looked at (17) . Dr. Mukamal says (18) also appear to settle which alcoholic beverage are (19) . "Beer and spirits, beer and liquor, were most ply (20) ."