更多“在18世纪，微积分与力学的有机结合，促进了常微分方程、偏微分”相关的问题
对于该患目前适宜的治疗为()
男性，63岁，近5年来反复出现咳嗽、咳痰伴胸闷、气短，每次经抗感染治疗后好转，近2周又出现咳嗽、咳黄痰，伴发热，经克林霉素抗感染治疗无明显好转，胸片可见双中下肺野弥漫斑片影，双下肺可闻及广泛湿啰音。
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到2020年，我国的生态文明建设主要目标有，重要江河湖泊水功能区水质达标率提高到( )以上，饮用水安全保障水平持续提升。土壤环境质量总体保持稳定，环境风险得到有效控制。
A.50% B.60% C.80% D.90%
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风险评价是对（）导致的风险进行评估、对现有的控制措施的充分性加以考虑以及对风险是否较小予以确定的过程。
A.风险点
B.危险源
C.事故
D.事件
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X线管灯丝加热变压器的调节是改变：（）
A.自耦变压器的电压
B.电源电路的次级电压
C.电源电路的初级电压
D.加热变压器的原电压
E.加热变压器的次级电压
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一配电室，高于地上一层，长9m，宽4.5m，高6m，设有一向疏散方向开启的甲级防火，现设计采用混合气体IG-541灭火系统，回答下列问题。贮存容器应设置在专用贮存容器间内，该防护区专用贮存容器间的设置应符合下列（）规定。
A.贮存容器间应设于防护区内或靠近防护区 B.贮存容器间内应设置火灾应急照明 C.贮存容器间的楼面的耐火等级不应低于二级 D.应设置机械通风装置
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教学过程中最基本的一种关系是（）。
A．学生与学生之间的关系
B．学校与社区之间的关系
C．教师与校长的关系
D．教师与学生这两个主体之间的关系
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在讨论安装有无分电器点火系统（DIS）的发动机不能起动的故障原因时，技术人员甲说，对于某些车型，如果发动机控制模块不能接收到曲轴位置传感器的信号，那就可能会造成发动机不能起动；技术人员乙说，对于某些
A.只有甲正确
B.只有乙正确
C.两人均正确
D.两人均不正确
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互感耦合振荡器有（）、发射极调谐型、基极调谐型。
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在单车试验时，装有104型分配阀的车辆进行紧急制动试验，其制动缸的最高压力应为（）。
A.（420±10）kPa
B.（一480±10）kPa
C.（420±20）kPa
D.（480±10）kPa
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林女士，持续性高热，体温40．2℃，遵医嘱给予冰帽降温，下列措施不妥的是
A．颈后部垫海绵
B．两耳塞不脱脂棉
C．两眼用凡士林纱布覆盖
D．每30min测一次肛温
E．肛温应维持在30℃以下
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设置重石脑油脱硫罐的目的主要是为了脱除重石产品中的硫化氢。（）
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People are used to speaking their native language, so immigrants are having many problems
People are used to speaking their native language, so immigrants are having many problems between the first generation and the second generation because they dont have the same native language. Also, the second generation is losing their identity. Especially in America, there are many immigrants that came from different countries to succeed in the States. Because they suffer in lots of areas such as getting a job and trying to speak English, they want their children to speak English, not only at school, but also at home in order to be more successful. Because of this situation, their children are losing their ethnic identity. For example, my aunt, who has been living in Chicago for twenty-five years, has three children and they were all bom in the States. The eighteen-year old daughter speaks English as a native language and she speaks Korean very well too. She has no problems talking with her parents, but she still doesnt understand Korean jokes, and there are sometimes misunderstandings. The second daughter is fourteen years old, and she doesnt want to speak Korean. My aunt often gets upset with her because she is very Americanized and they cannot understand each other. Even when my aunt punishes her, this daughter does not understand what my aunt is talking about. The third child is a twelve-year-old son. He speaks English to his parents and my aunt speaks Korean to him as she does to the second daughter. He also has a problem communicating with his parents. My aunt is trying to teach him to speak both languages, but it is very hard for him because he speaks English all day and does not understand why he should learn to speak Korean. We must realize that language is important and valuable for many reasons. Immigrants should make an effort to make their children understand their heritage by teaching them the parents language. This is very important, not only for the harmony of the family, but also in helping the second generation establish their identity. What do you think this article is about? A．Learning a second language. B．Immigrants who become sick in the US. C．Schools attended by immigrants to the US. D．Language and its effect on the identity of immigrants.
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CO中毒的轻重与下列哪项无关（）
A.空气中CO的浓度
B.与CO接触时间的长短
C.呼吸道通气量的大小
D.吸氧的早晚
E.CO在体内蓄积的浓度
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已缴回的印鉴卡，网点应妥善保管，不得再次交由客户、客户经理带离营业区域。
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