在镀铑溶液中，（）是光亮剂，可使镀层结晶细致、平滑、光亮。
A、硫酸铜和硝酸铅
B、硒酸
C、氨基磺酸
D、硫酸镁
参考答案：A
明清小说作者中，善于用神妖鬼怪形象，表达人民反对封建秩序的作者是 [ ]
A．曹雪芹
B．施耐庵
C．吴承恩
D．罗贯中
Sometimes floating rate issues have caps and/or floors, which limit the maximum or minimum coupon rate that the issue will pay. Which of the following statements is TRUE with regard to floating rate issues that have caps and floors（）
A. A floor is a disadvantage to both the issuer and the bondholder while a cap is an advantage to both the issuer and the bondholder.
B. A floor is an advantage to both the issuer and the bondholder while a cap is a disadvantage to both the issuer and the bondholder.
C. A cap is a disadvantage to the bondholder while a floor is a disadvantage to the issuer.
