We have __________ money to buy the nice coat.[ ]
A. few
B. enough
C. many
D. much too
答案:B
下述哪些疾病可引起纤维性椎管狭窄()
A.韧带肥厚
B.椎间盘脱出
C.蛛网膜粘连
D.骨性增生
E.韧带钙化
古人用什么方法保持口腔清洁?()
A.口服某种药物
B.嚼杨柳枝擦牙刮舌
C.用清水漱口