(狼追兔子)一只兔子躲进了10个环形分布洞的某一个中，狼在第一个洞中没有找到兔子，就隔一个洞，到第三个洞去找，也没有找到，就间隔两个洞，到第六个洞去找，以后每次多一个洞去找兔子…这样下去，如果狼一直找不到兔子.请问兔子可能躲在哪个洞中？-(Wolf chasing rabbits) a rabbit hide the distribution of 10-hole one ring, the wolf is not found in a rabbit hole, are separated by a hole to the third hole to find, but could not find, on the interval two holes, to the sixth hole to look for, look after each one more rabbit hole ... this continues, if the wolf could not find a rabbit. Will the rabbit hole which may be hiding?