mod = 1000000007
eps = 10**-9


def main():
    import sys
    input = sys.stdin.readline

    for _ in range(int(input())):
        N = int(input())
        A = list(map(int, input().split()))

        if N & 1:
            print("Alice")
        else:
            g = 0
            for a in A:
                g ^= a
            if g:
                print("Alice")
            else:
                print("Bob")


if __name__ == '__main__':
    main()