贸易项下风险参与产品不可降低（）所承担的风险。
A．信用证项下保兑行
B．福费廷包买行
C．保函项下受益行
D．信用证下通知行
参考答案：D
He would never have got the job, _____ for the fact that his father had great influence over the company．
A．had it not been
B．it had not been
C．it were no
D．were it not
某大学校园网分配到的网络地址是202.17.8.0/26。若再划分出4个子网，则每个子网可分配给主机的 IP地址数是 (49) 。
A．6
B．14
C．30
D．62
