from sys import stdin

t, *indata = map(int, stdin.read().split())
offset = 0
for _ in range(t):
    n = indata[offset]
    offset += 1
    if n % 2 == 1:
        print("Alice")
        offset += n
        continue
    d = dict()
    appear = set()
    for i in range(n):
        a = indata[offset+i]
        if a in appear:
            d[a] += 1
        else:
            d[a] = 1
            appear.add(a)
    offset += n
    check = True
    for i in appear:
        if d[a] % 2 == 1:
            check = False
            break
    if check:
        print("Bob")
    else:
        print("Alice")