T = int(input())
from collections import defaultdict
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("Alice")
        continue
    d = defaultdict(int)
    for i in a:
        d[i] += 1
    flag = False
    for v in d.values():
        if v % 2 == 1:
            print("Alice")
            flag = True
            break
    if flag == False:
        print("Bob")