填字成词，然后解释成语。

(1)流___  _忘返：_                                                             

(2)通____  达旦：__                                                           

(3)鳞次___  _比：_                                                              

(4)顶礼____拜：_                                                              _

(5)不以____然：_                                                             _ 

基金管理公司设立分支机构，应当自收到批准文件之日起( )日内向工商行政管理机关办理登记注册手续

A．10
B．15
C．30
D．90