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【简答题】

Kelly, a production supervisor, is responsible for 10 employees who assemble components into a finished product that is sold to distributors. Kelly reports to Ben, a production manager, who in turn reports to Dan, a general manager, who reports to McKenna, a vice president of operations. Recently, McKenna asked Dan to have a meeting with Kelly and Ben regarding some customer concerns in the production area. The focus of the meeting was to judge the validity of the customer concerns, and to develop a specific plan to address these concerns.

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【单选题】下列哪一项双重性酸碱失衡不可能出现

A.
代谢性酸中毒合并呼吸性碱中毒
B.
代谢性酸中毒合并代谢性碱中毒
C.
代谢性碱中毒合并呼吸性碱中毒
D.
代谢性碱中毒合并呼吸性酸中毒
E.
呼吸性酸中毒合并呼吸性碱中毒

【单选题】下列哪一项双重性酸碱失衡不可能出现( )。

A.
代谢性酸中毒合并呼吸性碱中毒
B.
呼吸性酸中毒合并呼吸性碱中毒
C.
代谢性碱中毒合并呼吸性碱中毒
D.
代谢性碱中毒合并呼吸性酸中毒

【单选题】进行性吞咽困难患者,突然出现吞咽困难改善或消失,可能是因为

A.
. 保守治疗有效
B.
. 部分癌肿组织脱落
C.
食管痉挛缓解
D.
食管癌穿孔
E.
水肿及炎症消退

【单选题】进行性吞咽困难患者,突然出现吞咽困难改善或消失,多提示()。

A.
食管癌穿孔
B.
食管痉挛缓解
C.
水肿及炎症消退
D.
癌肿组织细胞坏死
E.
部分癌肿组织脱落