更多“因为物体间的作用力与反作用力总是成对出现,且大小相等,方向相”相关的问题
食盐、白糖、味精的颗粒都是有规则几何外形的固体，人们把这样的固体物质叫做晶体。
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总分类账与明细分类账的联系包括（）。
A . 反映的经济业务内容详细程度相同
B . 记录的经济业务内容相同
C . 总分类账对明细分类账具有统御、控制作用
D . 明细分类账户对总分类账户具有补充、说明的作用
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男性，24岁，高热、流涕、咳嗽4天，予2001年4月7日入院。入院1天后出现呼吸困难，胸部X线片示双肺透亮度降低，经抗感染治疗患者症状不见缓解，呼吸困难进一步加重；胸部X线片示双肺呈白肺，R35次／min，血气分析（FiO29%）示pH值7.35，PaO56mmHg，PaCO36mmHg。根据目前患者的病理生理状态，需紧急采用的是（）
A.高浓度吸氧 B.安慰患者 C.接面罩行无创通气 D.气管插管行有创通气 E.紧急输血
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Task 1 Listen to a passage. Fill in the blanks with the information you have heard. [音频] 1) Some people find music 1 , while others find that music 2 them from their work. 2) Some scientific studies have shown that listening to music can lead to 3 , but other scientific studies have shown that music can 4 for some people. 3) For some people it is 5 to listen to music before studying instead of 6 . So, listen to a good song when you need to 7 your studying 8 !
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对C-501塔来说，以下说法不正确的是（）。
A.增加负荷后，塔顶压力要相应增加，温度不变
B.增加负荷后，塔顶压力、温度要相应增加
C.增加负荷后，塔顶压力不变，温度要相应增加
D.增加负荷后，塔顶压力、温度都不变
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下列各项中，按照《全国统一建筑工程预算工程量计算规则》的规定，应计入砌筑墙体工程量的是（ ）。 A．突出墙面的窗台虎头砖 B．120mm以上的腰线的突出部分 C．180mm以上的腰线的突出部分 D．混凝土圈梁
A.突出墙面的窗台虎头砖
B.120mm以上的腰线的突出部分
C.180mm以上的腰线的突出部分
D.混凝土圈梁
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Culam Mining (Culam) is a mineral ore mining business in the country of Teeland. It owns and operates four mines. A mine takes on average two years to develop before it can produce ore and the revenue from the mine is split (25:75) between selling the ore under fixed price contracts over five years and selling on the spot market. The bulk of the business’s production is exported. A mine has an average working life of about 20 years before all the profitable ore is extracted. It then takes a year to decommission the site and return the land to a useable form for agriculture or other developments. Recently, one of Culam’s foreign competitors surprised the market by becoming insolvent as a result of paying too much to acquire a competitor when the selling price of their minerals dipped as the world economy went into recession. As a result, the chief executive officer (CEO) wanted to know if this was likely to happen to Culam. She had read about the Altman Z-score as a way of predicting corporate failure and had a business analyst prepare a report calculating the Z-score for Culam. The report is summarised below:The analyst had done what was asked and calculated the score but had not explained what it meant or what action should be taken as a result. Therefore, the CEO has turned to you to help her to make sense of this work and for advice about how to use the information and how Culam should proceed into the future. Required:
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输送机的刮板弯曲不超过（）。
A.10毫米
B.15毫米
C.20毫米
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查找手术操作分类的编码，根据下列哪项选择主导词（）.
A.操作方法或解剖部位
B.手术入路或操作方法
C.手术方式或解剖部位
D.解剖部位或疾病性质
E.手术方式或操作方法
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当充电器的输出电压升高时，锯齿波的斜率会（）。
A.变大B.变小C.不变D.不确定
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写出下列器官的变态类型：胡萝卜（）、仙人掌的刺（）、豌豆的卷须（）。
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下级纪委至少()向上级纪委报告工作一次。
A.每三个月
B.每半年
C.每年
D.每个月
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深度为5的二叉树至多有( )个结点。
A.16 B.32 C.31 D.10
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根据《水利建设工程文明工地创建管理暂行办法》(水精[2012]1号)，文明工地创建的标准包括（）。
A.质量管理
B.综合管理
C.安全管理
D.施工区环境
E.合同管理
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