递延年金
是指在一定期间内(如n期),从0期开始隔s期(s≥1)以后才发生系列等额收付款的一种年金形式,记作A〞。
A campus emergency ______ occur at any time of the day or night, weekend, or holiday, with little or no warning.
免费的网站请分享给朋友吧