硫酸镁注射过量中毒时的特异性拮抗药是

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SQL Error: select id,body,options from ***_enewstiku where sourceid='30295' and id < 2449629 and id<>'2449629' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='30295' and id > 2449629 and id<>'2449629' order by id asc limit 5