因有效成分易挥发而多研末冲服的药物是（） ["A.细辛","B.川芎","C.肉桂","D.薄荷","E.白芷"]
川芎可用于（） ["A.小便不利，水肿","B.心悸怔忡，失眠","C.风寒头痛，风湿痹痛","D.湿浊蒙窍，神志不清","E.阴虚火旺，齿痛口疮"]
不管电动机是星接或三角接都可使用的启动方法是()。 ["星一三角启动法","变频启动法","绕线转子异步电动机启动法","自耦减压启动控制柜(箱)减压启动法"]
既能祛风湿，又能利水而性寒的药物是（） ["A.五加皮","B.防风","C.防己","D.黄芪","E.泽泻"]
计算与测量小儿体重有哪些意义?
何为生理性体重下降?
