当去甲肾上腺素与受体结合时，下列肌肉舒张的是

试卷相关题目

SQL Error: select id,body,options from ***_enewstiku where sourceid='29021' and id < 2361718 and id<>'2361718' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='29021' and id > 2361718 and id<>'2361718' order by id asc limit 5