俗话说“玩物丧志”,若青少年过分追求物欲满足往往会抵消其精神追求。这体现了 ①同

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问题:

俗话说“玩物丧志”,若青少年过分追求物欲满足往往会抵消其精神追求。这体现了   

①同一事物在发展的不同阶段有不同矛盾

②事物内部存在既对立又统一的关系

③事物发展是量变和质变的统一

④矛盾双方在一定条件下相互制约

A.①②

B.②③

C.①④

D.②④

考点:矛盾的普遍性和特殊性矛盾的含义和基本属性——同一性和斗争性坚持两点论和重点论的统一(抓重点、分清主流和支流)坚持具体问题具体分析唯物辩证法与形而上学
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驾驶机动车在高速公路上发生故障时,车上人员应当迅速转移到故障车前方躲避。

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阅读理解

    Sarah came running in. "Look what I found."Over the top of the paper I was reading came a crispy long

object that caused me to jump. It was a snake skin that had been shed by one of our many garden snakes.

     "Isn't it beautiful?" said my wideeyed sevenyearold daughter.

     I stared at the organic wrapper and thought to myself that it really wasn't that beautiful,but I have

learned never to appear uninterested with children. They see only good quality and excellence in the

world until educated otherwise.

     "Why does it do this?" Sarah asked.

     "Snakes shed their skin because they need to renew themselves." I explained. "Why do they need to

renew themselves?" Sarah asked.

     I suddenly remembered an article on this page many years ago where the writer was expressing her

concept of renewal. She used layers of paper over a wall to describe how we hide our original selves, and

said that by peeling away those layers one by one, we see the original beneath. "We often need to shed our

skins and those coatings that we cover ourselves with." I said to my now absorbed daughter. "We outgrow

some things and find other ones unwanted or unnecessary. Tills snake no longer needs this skin. It is probably too crinkly (起皱的) for him, and he probably doesn't think he looks as smart in it as he once did."

    Sarah was getting the point. As we talked, I knew that she began to understand, although slightly, that

renewal is part of progress; that we need to take a good look at ourselves, our rooms, schoolwork and

creativity, and see what we need to keep and what we need to cast off. I was careful to point out that this

is a natural consequence of their growth.

     "I see, Dad." said Sarah and jumped off my lap and ran off.

     I hoped she would remember this. That often, in order to find our real selves underneath the layers of

community and culture with which we cover ourselves year after year, we need to start examining these

layers. We need to gently peel some away, as we recognize them to be worthless or unnecessary; or at

best, store the ones thrown away as mementoes (念想) of our promotion to a better vitality or spirit.

1.At the first sight of the snake skin, the author was________.

A. scared        

B. puzzled      

C. uninterested          

D. excited

2.Sarah learned from her father that renewal is________.

A. to recover the layers inside

B. to review what has been done

C. a natural part of getting mature

D. the process of finding the unwanted

3.It can be inferred from the passage that the author________.

A. dislikes the snake skin at all

B. shows concern for nature and culture

C. can grasp the chance to educate children

D. often encourages his daughter to raise questions

4.The author mainly tells the reader that________.

A. snakes cast off the layers to look smarter

B. we should renew ourselves to get improved

C. snakes shed their skins to renew themselves

D. we should explore our original nature underneath

题型:选择题

一位老年女性患者,1天前抬重物时腰背部扭伤,疼痛逐渐加重,X线平片发现第12胸椎,第1腰椎椎体变扁,但椎间隙保持正常,CT检查发现椎体骨质不完整,周围有骨片与软组织密度影。此病例最需要鉴别的脊椎骨折原因是()

A.单纯外伤和椎体先天畸形

B.单纯外伤和椎体结核

C.单纯外伤和椎体转移瘤

D.椎体先天畸形和椎体结核

E.椎体结核和椎体转移瘤

题型:选择题

因为电压有方向,所以是向量。()

题型:选择题

背景


某高速公路设计车速120km/h,路面面层为三层式沥青混凝土结构。施工单位为某一大型公路专业施工企业,设施精良,技术力量雄厚。为保证工程施工质量,施工时作了如下控制:
(1)选用合格的石料进行备料,严格对下承层进行清扫,并在开工前进行实验段铺筑;
(2)沥青混合料的拌和站设置试验室,对沥青混合料及原材料及时进行检验,拌和中严格控制集料加热温度和混合料的出厂温度;
(3)根据拌和站的产量、运距,合理安排运输车辆,确保运输过程中混合料的质量;
(4)设置两台具有自动调节摊铺厚度及找平装置的高精度沥青混凝土摊铺机梯进式施工,严格控制相邻两机的间距,以保证接缝的相关要求;
(5)主要压路机械采用两台双轮双振压路机及两台16t胶轮压路机组成,严格控制碾压温度及碾压重叠宽度;
(6)纵缝采用热接缝,梯进式摊铺,后摊铺部分完成,立即骑缝碾压,以除缝迹,并对接缝作了严格控制。
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问题

]

混合料的运输中应注意的主要问题是什么

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