// This file is a "Hello, world!" in C++ language by GCC for wandbox.
#include <iostream>
#include <cstdlib>
#include <vector>
#include <utility>
#include <algorithm>
using namespace std;

int main()
{
  int T;
  cin >> T;
  while (T-->0) {
    int N;
    cin >> N;
    vector<int> a(N);
    for (int i=0;i<N;++i) {
      cin >> a[i];
    }
    if (N % 2 == 1) {
      cout << "Alice" << endl;
    } else {
        sort(a.begin(), a.end());
        bool flag = true;
        for (int i = 0; i < N; i += 2) flag &= a[i] == a[i+1];
        cout << (flag ? "Bob" : "Alice") << endl;
    }
  }
}