CP40、CP50备份的流程，哪个是正确的（）①CP-SB边接收Backupcopy②自动备份功能可以被激活③Backupcopy传送到APG40中④系统备份将拷贝到内存的备份区域⑤SB边进行RELOAD，DS，RSandPS数据得到更新⑥人工指令进行系统备份或自动备份开始⑦Backupcopy传送到SB边

A.3－6―4－2－1－7－5

B.5－2－7－3－1－6－4

C.7－2－5－1―4－3－6

D.6－4－7－1－5－3－2

97. When he was in America, he made a journey of seven hundred miles _____ purpose to get a glimpse of the Niagara Falls.

A．on

B．by

C．with

D．For