人类的适应可分为四个层次,即___________、____________、__________和___________。
参考答案:生理的;心理的;社会文化的;技术的
Would you mind _____ it again? Try to make yourself ______. [ ]
A. say, understood
B. to say, understand
C. saying, understand
D. saying, understood
可作为吗啡类镇痛药成瘾患者的戒毒药是()
A.利血平
B.莫索尼定
C.可乐定
D.米诺地尔
E.氯沙坦