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")
        continue
    cntA=Counter(A)
    flag=1
    for x in cntA:
        if cntA[x]%2==1:
            flag=0
            break
    if flag:
        print("Bob")
    else:
        print("Alice")