更多“公安工作的成败，公安队伍战斗力的强弱，取决于人民警察素质的高”相关的问题
不同社会的政治经济制度不同，但教育目的是相同的。____
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关于汽车低速时摆头故障描述错误的是（）。
A.行驶中有蛇行现象
B.转向操纵不稳
C.慢速时感到前轮摇摆
D.转向沉重
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水泥不溶物试验中两次过滤均用中速定量滤纸过滤。
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PPP协议是（）
A、对等协议
B、客户/服务器协议方式
C、点对点协议
D、网际协议
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节假日期间，某商场进行“买200送100”的促销活动，即顾客每购买200元的物品，商场返还100元只能在本商场消费的购物券。在促销期间，商品的最低价格是促销前价格的 (26) 。
A．1/4
B．1/2
C．2/3
D．3/4
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铝的膨胀系数大，焊后的变性小，易产生裂纹。（）
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为有效防止反流误吸，产科手术前产妇应禁食
A．4小时
B．5小时
C．6小时
D．7小时
E．8小时
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裙板锁力矩是（）N·m。
A.20
B.25
C.30
D.35
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11个月小儿，广东人，母有流产史，近5个月面色苍白，在"感冒"时加重，伴小便呈茶色，无发热，皮肤黏膜无出血，曾在外院输血2次。查体：明显贫血貌，双巩膜轻度黄染，双肺（﹣），心尖部闻及Ⅱ/6收缩期吹风样杂音，肝右肋下3cm，质中，脾左肋下5cm，硬。若患儿血红蛋白电泳示见一快速区带，HbH36%，HbA22.3%，HbF1.2%，据此，可诊断患儿系（）
A . 轻型α地中海贫血
B . 中间型α地中海贫血
C . 重型α地中海贫血
D . 重型β地中海贫血
E . 中间型β地中海贫血
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Words （）meaning，as we all know.
A．convince
B．convey
C．contribute
D．conquer
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组距数列中的下限一般是指（）。
A.各组变量值的最小值
B.各组变量值的最大值
C.变量数列中的最小变量值
D.变量数列中的最大变量值
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根据记载，中国古代的人曾迁往（）。
A.日本 B.东南亚 C.欧洲 D.美洲
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A. Time sometimes stopsB. Moving in slow motionC. We" re tricked by techD. Speeding up with ageE. Time doesn"t flyF. Time follows moodG. Lost in musicEver felt like time stands still while you"re waiting for something, or that as you get older, the years slip through your fingertips with much more ease With swaths of tech around us and virtually everything being available on demand, it"s a very real possibility that our body clocks and perception of time have changed. 1 As an old saying goes, "Time flies when we"re having fun." In reality, though, we know fully well that it does not. Nevertheless, psychologist James Kellaris conducted his own experiment to find out whether there"s any math to the saying. He had people listen to a piece of music they liked, and when he later asked them how much time they thought had passed, the listeners" estimates were usually longer. Kellaris suggested that when we"re enjoying ourselves, we pay more attention to the event and our minds perceive that as extra time. 2 A recent study has suggested that technology, too, is capable of altering our perception of time. Researchers found that 60% of 18-30 year-olds check their smartphones compulsively for updates, with each glance taking with it bits and pieces of the day. Having so much information readily available at out fingertips speeds up our internal clock. Likewise, each time we check Facebook or log in to Twitter, we subconsciously note the time, making us more aware of how much of it has passed in our day-to-day habits. 3 It"s commonly said that as we get older, time passes in the "blink of an eye". When young and fresh-faced, we"re constantly discovering new and exciting things that we"ve not experienced before, and we naturally pay a lot more attention to them. As we get older, though, those "new" experiences grow pale. By extension, time seems to pass more quickly. 4 If it felt like time was standing still, that might be because your brain genuinely thought it was. The "optical" illusion of time standing still is something that happens when our eyes move quickly from one point to another. According to Kielan Yarrow and a whole host of other psychologists, when our gaze fixes suddenly on the second hand of a clock, our perception of time stretches slightly backwards to compensate for that movement. As a result, your mind tells you that you"ve been looking at the second hand for longer, and thus fills in the blank with what it thinks should be there. 5 Many like to think that they"re not ruled by their emotions, but they do affect our bodies more than you think—at least in terms of how we perceive time. For a few years now, psychologists have carried out studies on the subject and have concluded that individuals experiencing negative emotions concentrate more on the passing of time than those who are in a good mood, which makes a particularly anxiety-filled moment seem longer. That might explain why after we argue, the room"s tension-ridden atmosphere makes time seem to drag on and on.
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下图表示人体内化学物质传输信息的两种方式。问题：（1）突触前膜释放神经递质作用于突触后膜是以图中__________（①或②）方式传递信息。神经递质可与突出后膜上相应的受体结合，其受体的化学物质类型是__________。兴奋在神经元之间的传递方向是__________（“单向的”或“双向的”）。（2）垂体释放促性腺激素作用于性腺是以图中__________（①或②）方式传递信息。当性激素分泌过多时反过来会抑制下丘脑和垂体的分泌活动，这种激素调节方式属于__________调节。
下图表示人体内化学物质传输信息的两种方式。问题：（1）突触前膜释放神经递质作用于突触后膜是以图中__________（①或②）方式传递信息。神经递质可与突出后膜上相应的受体结合，其受体的化学物质类型是__________。兴奋在神经元之间的传递方向是__________（“单向的”或“双向的”）。（2）垂体释放促性腺激素作用于性腺是以图中__________（①或②）方式传递信息。当性激素分泌过多时反过来会抑制下丘脑和垂体的分泌活动，这种激素调节方式属于__________调节。
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患者，男，72岁。咳嗽、咳痰、痰中带血1个月，头痛1周。患者1个月前无明显诱因下出现咳嗽、咳痰，痰多为白色黏液样带有血丝，无脓痰，平时活动后易出现气急、胸闷，患者抽烟50年，每天1包。查体：右下肺可闻及湿性啰音。抗感染治疗一周症状未见明显好转。患者X线平片如下图所示。https://assets.asklib.com/images/image2/2017041416095992210.jpg该患者的CT所示，结合病史，该患者最可能的诊断是（）
A . 肺脓肿
B . 肺癌
C . 炎性假瘤
D . 肺结核
E . 转移瘤
F . 大叶性肺炎
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参考答案
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