更多“______磨损是一种复合型磨损。”相关的问题
导座式附着升降脚手架有带导轨的架体，可以沿附着于墙体结构的导座进行上升，但不能下降。（）
A . 正确
B . 错误
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在EAP操作的宣传推广阶段，以下说法正确的是（）。
A.加大推广力度
B.目的是在员工和咨询员中建立绝对的信任关系
C.针对管理者做的宣传推广，主要是为了取得上级领导的支持和理解
D.对员工进行培训，有利于员工对咨询辅导的认知
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某企业于第一年年初和第二年年初连续两年各向银行贷款50万元，年利率为10％。约定于第四年、第五年年末等额偿还，则每年应偿还多少元？
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企业物质文化的首要内容是（）
A.企业名称
B.生产资料
C.企业象征物
D.产品
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肝癌术前护理哪项是错误地（）
A.高蛋白高脂肪高维生素饮食
B.适量输血血浆或白蛋白
C.术前3天口服肠道不吸收抗生素
D.术前晚术晨清洁灌肠
E.配血宜鲜血与库血各半
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糖的分解代谢主要指葡萄糖在体内一系列复杂的化学反应,葡萄糖的氧化分解方式根据其反应条件和反应途径的不同有()。
A. 糖的无氧氧化 B. 糖的有氧氧化 C. 磷酸戊糖途径 D. 糖异生
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由于天气变化、自然灾害或非接待方部门的原因造成的事故称之为（）。
A、将成事故
B、已成事故
C、责任事故
D、非责任事故
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保护层常用的材料和形式有多种，下列哪种适用于室外有防火要求的管道？
A.金属薄板保护壳
B.石棉石膏或石棉水泥保护层
C.玻璃丝布保护层
D.沥青油毡加玻璃丝布保护层
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急性心肌梗死时溶栓治疗，判断疗效最有价值的是（）
A、2小时内胸痛基本消失
B、2小时内太高的ST段回降>50%
C、心肌酶CK-MB峰值提前出现(14小时内)
D、2小时内出现再灌注性心律失常
E、冠状动脉造影
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以下关于等额本金还款说法错误的是（）
A.月还款额=贷款总额÷还款总期数
B.初期由于本金较多，将支付较多的利息
C.还款额在初期较多，并在随后的时间每月递减
D.等额本金还款也是一种比较常见的还款方法
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High Dive kilometers up into the atmosphere.(1). No one has ever leapt from such a height or gone supersonic without an airplane or a spacecraft. Yet Stems, an airline pilot, is not the only person who wants to be the first to accomplish those feats. Two other. have people an Australian man and a Frenchman, are also planning to make similar leaps.(1). First, she'll climb into a cabin hanging from a balloon the size of a football field. Then the balloon will take her high into the's trato sphere -- the layer of Earth's atmosphere 12 to 50 kilometers above the planet. 'The ascent will take two and a half to three hours.' said Stems.”Tll be wearing a pressurized, temperature-controlled space suit.” At 40 kilometers, Stems will be able to see the gentle curve of Earth and the blackness of space over head. Then she'll unclip herself from the cabin and dive headfirst, like a bullet, into the atmosphere.(3) For high dive, astronaut escape suits are a key to success. Current pilot and astronaut escape suits are guaranteed only a maximum altitude of 21 kilometers. Del Rosso, a NASA engineer of spacesuits and life — support systems, said the suit designed for Stem's jump could serve as a model for the lethal environment of higher climbs.(4) The first hazard is oxygen-deficient air. Any person without an additional oxygen supply at 40 kilometers would die within three to five seconds. The second hazard is low atmospheric pressure. Atmospheric pressure is much lower at high altitudes than it is at sea level. The low atmospheric pressure of the upper stratosphere causes the gases in body fluids to fizz out of solution like soda bubbles.(5)Other hazards include temperatures as low as 55 degrees Celsius, flying debris, and solar radiation. For Stems to survive, her spacesuit will have to protect her from all of these hazards. 'A spacesuit is like a one-person spaceship,' Del Rosso explained. 'You have to take everything you need in a package that's light enough, mobile enough, and tough enough to do the job. You can't exist without it.' feat n. 技艺的表演 stratosphere n. 同温层 pressurize v. 加压，增压 lethal adj. 致死的 fizz v. 嘶嘶响 debris n. 碎片 A. It will handle several major hazards. B. Escape suits are tough enough to stand the atmospheric pressure of the upper stratosphere. C. From there, she'll take a death-defying leap back to Earth at supersonic speed. D. 'In 30 seconds, I'll be going Mach speed,' said Stems. E. How will Stems make her giant jump? F. In short, blood boils.
A.(1).B.(1).C.'D.”TllE.”F.(3)G.(4)H.(5)OtherI.J.'K.L.M.N.O.
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炉压大小对炉内火焰形状、温度分布以及气氛等均有影响。（）
炉压大小对炉内火焰形状、温度分布以及气氛等均有影响。（）
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使企业生产经营要素及其产品实行集中化、达到理想经济效益的界限产（销）量的过程是（）。
A.规模化经营
B.集中化经营
C.集团化经营
D.优势化经营
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十二齿小蠹主要寄生在（）。
A.树梢
B.叶背面
C.树干干基
D.主干的厚树皮部分
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