治疗窦性心动过速首选的药物是
A.酚妥拉明B.普萘洛尔C.利多卡因D.胺碘酮E.维拉帕米(异博定)
参考答案:B
Every day, we have ______ food, so many of us lose health.[ ]
A. much too
B. too many
C. too much
不属于总生物碱提取方法的是()
A.溶剂法
B.升华法
C.离子交换树脂法
D.沉淀法
E.萃取法