更多“台式电脑主机、笔记本电脑等电脑设备折旧年限为（）年。”相关的问题
从内容上看，实践可分为三种基本类型：（ ）
A. 物质生产实践B. 道德实践C. 社会政治实践D. 科学文化实践
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《国家电网公司输变电工程设计施工监理激励办法》规定，初步设计阶段，设计单位为工程施工或运行提出创新性建议，包括采用安全高效工器具及方法等，对（）有成效，可作为创新要素评价内容。
A . 缩短工期
B . 节约成本
C . 提高质量
D . 提高安全性
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按下图回答问题。 波浪的上跨零点有（）。“A”、“B”、“C”、“D”、“E”、“F”、“G”
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Lowering the Risk of Heart DiseaseLike millions of other Americans, I come from a family with a history of the heart disease. My father had his first three heart attacks when he was only thirty-one. I was three years old at that time. I grew up with heart disease. It was there, but I didn"t take it seriously.When I was thirty-one, my blood cholesterol (胆固醇) level was measured for the first time. It was 311 mg/dl, the doctor told me-an extremely high level that put me at a very high risk of heart disease, especially with my family history. He sent me to the National Institutes of Health (NIH) to be screened for participation in a clinical trial. The trial was designed to test the effect of lowering blood cholesterol on the risk of heart disease.At NIH, physicians explained the degree of risk associated with my blood cholesterol level and the nature of the experiment. This test involves putting a tube through a leg artery (动脉) up to the heart. The death rate for the test was only 1 in 100, I was assured.Learning about the risks of the experiment as well as the risk associated with my raised blood cholesterol level scared the life out of me. Although I was excluded from participating in the study, the experience may well have saved my life.For the first time, I began to realize the seriousness of high blood cholesterol. It was a heart attack just waiting to happen. But equally important, I got a taste of what it is like to be a patient, to have tests done on me and to think of myself as sick. This was hard to take.This experience taught me two lifesaving lessons. First, although I felt fit and strong, I was actually at high risk for heart disease because of my high blood cholesterol level. And with my family history, it could not be ignored. Second, I could lower my blood cholesterol level simply by changing what I ate.
A．By eating less.B．By realizing the risk of heart disease.C．By putting a tube through a leg artery up to the heart.D．By changing diet.
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心室肌复极化时程较长的主要原因是存在（）
A . 复极初期
B . 去极化期
C . 平台期
D . 复极末期
E . 静息期
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关于被评议人的要求，说法错误的是（）。
A.被评议人保证所提供的材料真实可靠，不伪造、篡改或剽窃
B.被评议人明确研究成果的来源或归属，不掺入其他项目研究成果或非项目参加人的成果
C.如果对评议结果有异议，应当依照相关程序提出复议申请不能因评议结果对自己不利而威胁、攻击或报复评议人
D.被评议人可以私下接触评议人
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小儿支气管肺炎全年均可发病，以冬春寒冷季节较多;支气管肺炎由细菌或病毒引起。
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标高符号样式包括（）。
A.上标头
B.下标头
C.正负零标头
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我国淡水资源严重不足，许多城市供水紧张。为使城市居民节约用水，政府应该采取的措施是（）
A.增加水的供给
B.安装节水龙头
C.减少水的供给
D.提高水价
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与脉冲增压系统相比，关于模件式脉冲转换增压系统特点的不正确说法是（）。
A.排气管布置简单 B.排气管不要分组 C.废气涡轮效率较高 D.只利用定压能，不利用脉冲能
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患儿，男，7岁。急起畏寒、高热、头痛、呕吐6小时。身体评估：体温40℃，神志淡漠，全身皮肤黏膜有散在瘀点、瘀斑，颈软，脑膜刺激征（-）。血常规：白细胞15×109/L，中性粒细胞95%，淋巴细胞5%，疑为中枢神经系统感染。病人次日头痛加重，频繁呕吐。身体评估：颈强直，Kernig征（+）。脑脊液检查：蛋白2g/L，氯化物112mmol/L，糖0.55mmol／L。本病应考虑为（）
A . A.流行性乙型脑炎
B . 流行性脑脊髓膜炎
C . 肺炎链球菌脑膜炎
D . 结核性脑膜炎
E . 散发性病毒性脑炎
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DK—l型电空制动机（）时，便自动产生（）作用。
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YJ1KV1*1.5是（）电缆。
A . A、交联
B . B、像套
C . C、电力
D . D、控制
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身骑狮子，象征智慧威猛，人称大智菩萨的是普贤菩萨。相传其道扬在山西五台山。( )P87
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航次期租下承租人支付的费用是( )。
A．运费
B．附加费
C．租金
D．包干运费
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