会阴侧切术时切断的肌肉包括（  ）。

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SQL Error: select id,body,options from ***_enewstiku where sourceid='25966' and id < 2177898 and id<>'2177898' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='25966' and id > 2177898 and id<>'2177898' order by id asc limit 5