题目内容

四十岁男性,因上腹部不适及黑便作胃镜检查,胃窦部粘膜严重充血,水肿,小弯处有多处粘膜剥脱及粘膜下出血点。活检报告:粘膜中性白细胞,淋巴细胞浸润,血管破裂及出血。患者因感冒服扑热息痛2片,后感上腹不适,呕吐咖啡样物约500ml,首选治疗是()。

A. 注射维生素K
B. 口服云南白药
C. 注射垂体后叶素
D. 口服灭滴灵
E. 静滴甲氰咪胍

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现代礼仪被广泛地运用于国家与国家之间、组织与组织之间、组织与公众之间、个人与个人之间、家庭成员之间等社会交往的()。

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You have altered a non-unique index to be invisible to determine if queries execute within an acceptable response time without using this index. Which two are possible if table updates are performed which affect the invisible index columns?()

A. The index remains invisible.
B. The index is not updated by the DML statements on the indexed table.
C. The index automatically becomes visible in order to have it updated by DML on the table.
D. The index becomes unusable but the table is updated by the DM
E. The index is updated by the DML on the table.

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