A BGP router has the following configuration： 
protocols{ 
bgp{ 
export[policy-1 policy-2 policy-3]； 
}} 
policy-options{ 
policy-statementpolicy-2 { 
termget-statics{ 
fromprotocol static； 
thenaccept； 
} 
termreject-all { 
thenreject； 
} 
} 
policy-statementpolicy-1 { 
termget-aggregate { 
fromprotocol aggregate； 
thenaccept； 
} 
termreject-all { 
thenreject； 
} 
} 
policy-statementpolicy-3 { 
termget-ospf { 
fromprotocol ospf； 
thenaccept； 
} 
termreject-all { 
thenreject； 
} 
} 
}  
Which policy term is evaluated first when exporting routes？（）