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问题 单项选择题

下列关于合同变更的有关表述中，正确的是（）。

A.当事人协商一致，可以变更合同

B.合同变更是针对已经成立，但还未生效的合同

C.合同变更包括合同主体和内容的改变

D.合同变更是在原合同债的基础上产生的新合同债

答案

参考答案：A

单项选择题

The nurse in the emergency department is assessing a 64-year-old client experiencing substernal chest pain. The client’s electrocardiogram shows evidence of myocardial ischemi

a. Which statement should indicate to the nurse that the client may be a candidate for thrombolytic therapyA. "I have had chest pain for 2 days. "B. "My chest pain started 3 hours ago. "C. "My chest pain stops when I take a nitroglycerin pill. "D. "I have had chest pain on and off all week. "
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单项选择题 A3/A4型题

男性，80岁，患大叶性肺炎，持续高热1周，咳嗽，咳铁锈色痰，经治疗体温正常，但呼吸困难加重，口周发绀，消瘦，食欲差，体重进行性下降，既往有慢性支气管炎史。临床诊断为“肺恶病质综合征”。

该病人应限制哪组食物（）。

A.米饭、豆沙包、冰激凌

B.米饭、油条、水果

C.植物油、蔬菜

D.坚果、水果

E.香菇、木耳
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