当叶片用围带连接成组后，设fA0和f'A0分别是单个叶片和叶片组A0型振动的自振频率，则()。

A.Fa0/1

B.Fa0/3

C.Fa0/4

D.Fa0/6

E.Fa0/9

F.Fa0/12

A.Switch A - Fa0/0

B.Switch A - Fa0/1

C.Switch B - Fa0/0

D.Switch B - Fa0/1

E.Switch C - Fa0/0

F.Switch C - Fa0/1

A.±8

B.±15

C.±12

D.±5

Thenetworkisdisplayedinthediagrambelow：

YouusethefollowinginformationforswitchSWA：

PortModeEncapsulationStatusNativeVLAN

fa0/1desirablen-802.1qtrunking5

PortVLANsisallowedontrunk

fa0/11-100，102-1005

PortVLANsisownedandactiveinmanagementdomain

fa0/11-6.8-100，102-115，197-999，1002-1005

PortVLANsinspanningtreeforwardingstateandnotpruned

fa0/11-6，8-100，102-105，108-999，1002-1005

SWusersinVLAN107complainthattheyareunabletogainaccesstotheresourcesthroughtheSW1router.

Whatisthecauseofthisproblem？（）

A.有SW1的Fa0/1和SW2的Fa0/1接口之间的速度（speed）不匹配

B.有SW1的Fa0/1和SW2的Fa0/1接口之间的MTU不匹配

C.有SW1的Fa0/1和SW2的Fa0/1接口的封装不匹配

D.SW1的Fa0/1接口的管理关闭

A.There is a speed mismatch between SW1‘s Fa0/1 and SW2‘s Fa0/1 interfaces.

B.There is an MTU mismatch between SW1‘s Fa0/1 and SW2‘s Fa0/1 interfaces.

C.There is an encapsulation mismatch between SW1‘s Fa0/1 and SW2‘s Fa0/1 interface.

D.SW1‘s Fa0/1 interface is administratively shut down.