Given the community： 
communitymy-company members "^[1-3]*7：666$"； 
Which four communities does this expression match？（）

Which action occurs when the policy main-policy evaluates the BGP route 10.0.55.2/32？（）
[edit policy-options] 
policy-statement test {
from { 
route-filter10.0.0.016/orlongeraccept； 
route-filter10.0.67.0/24orlangerreject； 
route-filter10.0.0.0/8orlanger； 
} 
then { 
metric10； 
community add no-advertise； 
accept； 
} 
} 
policy-statement main-policy { 
term only-want-certain-routes { 
from { 
policytest； 
} 
then { 
communityadd harry-402； 
accept； 
} 
} 
} 
communityno advertise members no-advertise； 
communityharry-402 members 666：402； 
[edit protocols] 
bgp { 
exportmain-policy； }