患儿，男，9个月，体重10kg，阵发性哭闹20 小时，伴有呕吐，排果酱样便1次，腹部触及 可疑包块。最有效的辅助检查是

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SQL Error: select id,body,options from ***_enewstiku where sourceid='32575' and id < 2589515 and id<>'2589515' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='32575' and id > 2589515 and id<>'2589515' order by id asc limit 5