import sys
import os

sys.setrecursionlimit(100000)
is_local = "TERM_PROGRAM" in os.environ
input = sys.stdin.readline
INF = float('inf')
MOD = 998244353

def debug(*args, **kwargs):
    if is_local:
        print(*args, **kwargs)
def I(): return input().rstrip()
def IS(): return input().split()
def II(): return int(input())
def IIS(): return map(int, input().split())
def LIIS(): return list(map(int, input().split()))

def main():
    q = II()
    from collections import Counter

    for _ in range(q):
        n = II()
        va = LIIS()
        if len(va) % 2:
            print("Alice")
            continue

        cnt = Counter(va)
        if all(v % 2 == 0 for v in cnt.values()):
            print("Bob")
        else:
            print("Alice")

if __name__ == "__main__":
    main()