T = int(input())

for _ in range(T):
    N = int(input())
    a = list(map(int,input().split()))
    if N % 2 == 1:
        print('Alice')
        continue
    S = 0
    for i in a:
        S ^= i
    if S == 0:
        print('Bob')
    else:
        print("Alice")