某人拟进行一项投资,投资额为1000元,该项投资每半年可以给投资者带来20元的收益,则该项投资的年实际报酬率为( )。
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