先兆早产时，以下药物不能抑制宫缩的是（  ）。

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SQL Error: select id,body,options from ***_enewstiku where sourceid='25968' and id < 2178244 and id<>'2178244' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='25968' and id > 2178244 and id<>'2178244' order by id asc limit 5