急性肝炎可出现（）
A.ALT明显升高
B.血氨明显升高
C.γ-GT明显升高
D.AFP明显升高
E.ALP明显升高
参考答案：A
4条路由：220.117.129.0/24、220.117.130.0/24、220.117.132.0/24和220.117.133.0/24经过汇聚后得到的网络地址是（）。
A．220.117.132.0/23
B．220.117.128.0/22
C．220.117.130.0/22
D．220.117.128.0/21
A bond that pays $ 100 in interest each year was purchased at the beginning of the year for $1050 and sold at the end of the year for $1100. An investor's holding period return is:（）
A. 14.3%.
B. 10.0%.
C. 10.5%.
