更多“绝缘子的击穿电压至少等于干闪电压（）倍。”相关的问题
It is obvious that this new rule is applicable to everyone without ______.
A．exception
B．exclusion
C．modification
D．substitution
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人工孵化时水源要经过筛绢网过滤，过滤的目的是（）。
A.防止浮游动物进入孵化器 B.防止浮游植物进入孵化器 C.防止大型敌害生物进入孵化器 D.防止水流冲击受精卵
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触电一般是指人体“触”及带“电”体，触电事故可分为“电击”“电死”两种类型。
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What’s the main idea of this paragraph?
A number of recent books with titles like Raising Cain, Real Boys, and Lost Boys all focus on the same issue: Today’s teenaged boys are feeling more anxiety than ever before about their physical appearance. Bombarded by advertising featuring well-muscled, semi-clad young men, teenage boys are experiencing what teenage girls have been coping with for years. They are afraid that they cannot possibly live up to the media’s idealized image of their gender. Young boys below the average in height, weight, or both suffer the most. Often, they are brutally teased by their brawnier peers. Some react to the ridicule by heading for the gym and lifting weights. Yet even those who successfully “bulk up” don’t like feeling that they are considered worthless if they lose their hard-won muscle tone. Others, convinced that no amount of body building can help, often withdraw from social contact with their peers. This is their way of avoiding taunts about their size or shape. Still, they are understandably angry at being badly treated because of their body type. Although school psychologists generally recognize that boys today are having severe body image problems, they are at a loss about what to do to solve those problems.
女孩，8岁。因左耳垂下肿痛3d，发热伴腹痛 12h，呕吐2决于1994年3月入院。体检：体温 39℃，神志清，咽红，左侧腮腺3cm×4cm，软，有压痛，颈软，心、肺无异常，腹软，左上腹部有轻压痛，无肌卫及反跳痛，克氏征、布氏征、巴氏征均阴性。该病人最可能的诊断是
A.流行性腮腺炎
B．流行性腮腺炎并发脑膜脑炎
C．流行性腮腺炎并发胰腺炎
D．流行性腮腺炎并发急性胃炎
E．流行性腮腺炎并发卵巢炎
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血浆胆碱酯酶异常的病人，容易出现（）
A.肌松药作用增强 B.肌松药作用减弱 C.筒箭毒碱等时效延长 D.琥珀胆碱药效明显减弱 E.琥珀胆碱Ⅱ相阻滞
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群落内部环境因子的______，是群落镶嵌性的主要原因。
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风寒感冒的首选方剂是（）.
\tA.桂枝汤
\tB.麻黄汤
\tC.三拗汤
\tD.银翘散
\tE.荆防败毒散
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某仓库摆放矿泉水初期库存量为38箱，第一个月库存量为36箱，第二个月库存量为43箱，第三个月库存量为41箱，则平均库存（）。
A.40
B.39.5
C.52.7
D.都不对
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联合国《儿童权利公约》的核心精神是维护儿童（ ）。
A．社会权利主体地位
B．生存权利
C．健康安全权利
D．受教育权
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我们公司在东莞，公司有个员工的社保卡丢了，他想知道如何办理社保卡补办？
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男，40岁，腰痛伴右小腿外侧麻痛半年。查体：右伸第一趾肌力减弱，X线示L4、L5间隙变窄。为明确诊断，应再做以下哪项（）。
A . MRI检查
B . 诊断性神经阻滞治疗
C . 诊断性腰椎牵引治疗
D . B+C
E . 诊断已明确，无需再做任何检查
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根据我国《保险法》的规定，财产保险的被保险人在保险事故发生时，对保险标的应当具有保险利益。
A . 正确
B . 错误
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