发行人应于金融债券每次付息日前()个工作日公布付息公告,最后一次付息暨兑付日前()个工作日公布兑付公告。()
A.1;3
B.2;3
C.2;5
D.3;5
参考答案:C
— Why is he feeling down today?
— Because the suggestion he _____ has been turned down. [ ]
A. put away
B. put up
C. put down
D. put forward
d60表示通过百分率为60%时在累计曲线上对应的粒径。