from collections import Counter
T = int(input())
for _ in range(T):
    N = int(input())
    A = list(map(int,input().split()))
    if N%2==1:
        print('Alice')
    else:
        c = Counter(A)
        odd = False
        for v in c.values():
            if v%2:odd=True;break
        print('Alice'if odd else 'Bob')