副脉
参考答案:原有纵脉上发生的许多分支脉,这些分支脉叫副脉。
初中化学实验室有一瓶失去标签的盐溶液,实验测得其呈碱性,其PH一定______,该盐的化学式可能是______.检验碳酸盐的试剂是______,检验时产生的实验现象为______.
Which of the following statements represents a major principle of chronic pain management
A.A physiologic approach is most effective.
B.A psychological approach is most effective.
C.A pharmacologic approach is most effective.
D.A multidisciplinary approach is most effective.