典型麻疹一般于发热多少天出现皮疹()
A.1周
B.5~6天
C.3~4天
D.1~2天
E.1天
参考答案:C
下列诸病中哪个不属乙类管理的传染病()
A.霍乱
B.麻疹
C.伤寒
D.日本血吸虫病
E.结核病
An U. S. Treasury zero-coupon bond with a face value of $1000 matures in 7 years. If the bond's yield to maturity is 6.0%, the bond's current value is closest to:()
A. $442
B. $661
C. $665