在MSR路由器上，如果以访问级登录设备后想要修改一些配置，可以使用（)命令切换到level3。

A.A.nataddress-group

B.B.natippool

C.C.natnetpool

D.D.natpool

A.A.dirrecycle-bin

B.B.dirtrash

C.C.dir/all

D.D.dirall-file

A.iproute-static

B.route-static

C.ipstatic-route

D.static-route

A.put

B.get

C.download

D.load

A.A.clearnat

B.B.clearnatsession

C.C.resetnatsession

D.D.resetnattable

A.A.displaynatcounter

B.B.displaynat

C.C.displayacl

D.D.displaynatsession

A.MSR>debuggingrippacket

B.MSR]debuggingrippacket

C.MSR>debuggingrip1packet

D.MSR>debuggingrip2

A.get

B.put

C.download

D.load

A.info-centerdisable

B.undoinfo-centerenable

C.disableinfo-center

D.undoinfo-center

A.A.cleartrash

B.B.resetrecycle-bin

C.C.clearall

D.D.resettrash-bin