根据债券等级评估的结果,被称作“金边债券”的是( )
A.AAA级债券 B.AA和AAA级债券 C.A、AA和AAA级债券 D.BBB以上级别的债券
参考答案:A
I don't understand _______ you said. [ ]
A. when
B. that
C. where
D. what
成都生育保险怎么报销?报销多少钱?