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问题描述：

[单选] 下列不是急性左心衰的表现的是（）
A．呼吸困难 B．烦躁大汗 C．恶心呕吐 D．咳嗽咳痰
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上一篇：肺水肿最具特征性表现是（） 下一篇：患儿，男，8岁。确诊为原发型肺结核，护士对其家属实施健康教育中恰当的是（）

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以下哪一项是睫状肌（M3受体）在聚焦近物体时收缩的主要第二信使过程？Which of the following is the primary second-messenger process in the contraction of the ciliary muscle （M3 receptor） when focusing on near objects ？
下列哪项特征描述了副交感神经系统？Which of the following features describes the parasympathetic nervous system？
治疗过量使用匹罗卡品滴眼液时，应立即使用下列哪一种药物？Which of the following agents should be immediately given to the patient to treat overdose of pilocarpine eye drop？
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以下哪一种给药途径将获得血清药物浓度最低？Which of the following routes of medication administration would provide the lowest serum drug concentration？
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