患者,男,50岁。右下肢骨折,已用石膏绷带固定。内服药物宜首选()
A.土鳖虫
B.桃仁
C.红花
D.丹参
E.莪术
参考答案:A
Andy has _____ all of his money and no one would like to help him.[ ]
A. used to
B. used up
C. used as
D. used for
波分复用技术的特点。