某栈的存储空间为S(1 :60)，初始状态为lop =61。现经过一系列正常的入找与退栈 操作后，top = 1，则栈中的元素个数为（ ）

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SQL Error: select id,body,options from ***_enewstiku where sourceid='29839' and id < 2421736 and id<>'2421736' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='29839' and id > 2421736 and id<>'2421736' order by id asc limit 5