from collections import Counter

T = int(input())
for _ in range(T):
    N = int(input())
    As = list(map(int, input().split()))
    if N % 2 == 1:
        print("Alice")
    else:
        nim = 0
        cnter = Counter(As)
        odd = False
        for val in cnter.values():
            if val % 2:
                odd = True
                break
        if odd:
            print("Alice")
        else:
            print("Bob")