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患者男性,15岁,因发热38.9℃和耳痛前来就诊。检查发现为急性左中耳炎,以阿莫西林治疗。2周后他前来复诊,体检发现鼓膜后有液体,注气后鼓膜稍微移动,没有红斑。以下哪种药物能改善这种情况()
测定酚类化合物时,在分析过程中加入三种显色用试剂时,每加入一种必须摇匀后再加入后一种,否则严重影响分析结果。
商品的交换使用价值
患者绝经前后,月经紊乱,月经提前,量少,经色鲜红,头晕目眩,耳鸣,头部面颊阵发性烘热,汗出,无心烦热,腰膝酸疼,足跟疼痛,或皮肤干燥、瘙痒,口干便结,尿少色黄,舌红,少苔,脉细数。其证候是()
中国古代史学有以下特点:(1)____;(2)____;(3)____;(4)_____;(5)____。
用药物治疗扩张型心肌病时应慎用下列哪种药物()
结构化分析方法的分析策略是()
下列不是结肠癌转移途径的是()
简述纪要的适用范围与特点。
用新疆落叶松原木制成木柱,柱长4.0m,柱中部直径d1=200mm,有一螺栓孔d2=20mm穿过截面中间,两端铰接、露天环境、使用年限25年。按强度验算时,木柱能承受的轴向力设计值N(kN)与下列何项接近?()
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