对肿瘤性腰背痛,描述不正确的是()。
A.持续性腰背痛
B.原发性肿瘤多于继发
C.疾病发展迅速
D.药物缓解不明显
E.常有放射性神经根痛
参考答案:B
氨曲南的化学结构为().
A.氟他胺
B.非那雄胺
C.左炔诺孕酮
D.丙酸睾酮
E.达那唑
I know I should _____ on fat, but knowing such things is not much help when it comes to shopping and eating.
A.cut up
B.cut in
C.cut down
D.cut off