from sys import exit
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
    
    x=0
    for a in A:
        x^=a
    if x==0:
        cntA=Counter(A)
        flag=1
        for x in cntA:
            if cntA[x]%2==1:
                flag=0
                break
        if flag:
            print("Bob")
        else:
            print("Alice")
    else:
        cnt=0
        cntA=Counter(A)
        for x in cntA.values:
            cnt=max(cnt,cntA[x])
        if cnt>n:
            print("Alice")
        else:
            print("Bob")