咯血是指（）
A.鼻咽部的血经口排出
B.牙齿大量出血，成口咳出
C.消化道内出血，经口吐出
D.气管、支气管、肺出血经口咳出
E.以上都对
参考答案：D
护士在指导肝硬化腹水患者的饮食，其中氯化钠的摄入量宜控制在每日（）
A.1.5～2.0g
B.2.5～3.0g
C.3.5～4.0g
D.4.0～5.0g
E.5.0～6.0g
Which of the following statements about municipal bonds is FALSE（）
A. A municipal bond guarantee is a form of insurance provided by a third party other than the issuer.
B. Revenue bonds have lower yields than general obligation bonds because there are more revenue bands and they have higher liquidity.
C. Bonds with municipal bond guarantees are more liquid in the secondary market and generally have lower required yields.
