具羊膻气的药材是
A.桑白皮
B.地骨皮
C.五加皮
D.香加皮
E.白鲜皮
参考答案：E
—Why do you think the man is running?
—He could be running ________. [ ]
A. to exercise
B. for exercise
C. for exercises
D. to exercises
Catalyst 6500(Catalyst OS(CatOS)系统)中配置Uplink Fast生成树可选功能的命令格式是( )。
A．set spantree uplink fast enable
B．spanning-tree uplink fast
C．spanning-tree vlan root primary
D．spanning-tree uplink fast max-update-rate <0-32000>
