#include<bits/stdc++.h>
using namespace std;

int main(){
    int t;
    cin>>t;
    while(t--){
        int n;
        cin>>n;
        vector<int> a(n);
        for(auto &&v:a)cin>>v;
        if(n%2==1){
            cout<<"Alice\n";
            continue;
        }
        sort(a.begin(),a.end());
        bool win=true;
        for(int i=0;i+1<n;i+=2){
            if(a[i]==a[i+1]){
                win=false;
                break;
            }
        }
        cout<<(win?"Alice":"Bob")<<'\n';
    }
}