上海某商厦屋顶上铺满了一个个种植箱,这里被称为“屋顶农庄”。商家专门从长白山运来优质

题型:单项选择题 案例分析题

问题:

上海某商厦屋顶上铺满了一个个种植箱,这里被称为“屋顶农庄”。商家专门从长白山运来优质土壤,吸引附近居民租借种植箱种植蔬果。屋顶农庄运作以来,整栋商厦夏季空调用电量下降......

除了经济效益外,开设屋顶农庄还可获得环境效益。因为它有助于()

A、减少灰霾污染

B、缓和热岛效应

C、削弱紫外辐射

D、增强雨岛效应

考点:地球科学自然地理综合研究自然地理综合研究题库
题型:单项选择题 案例分析题

如图所示,沿x轴正向传播的一列简谐波在某时刻的波形图为一正弦曲线,其波速为200 m/s,则可推出(  ).

A.再经过0.01 s,图中质点a的速度方向与加速度方向相同

B.图中质点b此时动能正在减小,其加速度正在增大

C.若发生稳定干涉现象,该波所遇到的波的频率为50 Hz

D.若发生明显衍射现象,该波所遇到的障碍物的尺寸一般不大于2 m

题型:单项选择题 案例分析题
A man and his family were in Europe. Once they needed to drive 3 days   36, day and night, to get to Germany. His little daughter had never  37 at night without a break before. She was  38  the first night in the car, with terrible deep darkness outside.
“Where are we going, Daddy?” asked the daughter. “To your uncle’s house in Germany.” Father answered.
“Have you been to his    39  before?” “No.”
“Then, do you know the   40 ?” “Maybe, we can read the map.”
Short pause. “Do you know how to read the map?” “Yes, we will get there  41    . Don’t worry.”
The same dialogue  42  a few times within the first night, and also the second night.   43  on the third night, his daughter was quiet. Father thought that she might have fallen   44 , but when he looked into the mirror, he saw that she was awake and was just   45 calmly. He couldn’t help wondering   46 she was not asking the questions anymore.
“Dear, do you know where we are going?” “Germany, uncle’s house.”
“ Do you know how we are getting there?” “No.”
“ Then why aren’t you asking anymore?” “Because Daddy is   47 .”
Because Daddy is driving. This answer from a 3 years old girl has then become the   48  and help this man for many years whenever he has questions and
  49 on his journey. We may  50 the destination and sometimes we may just know it  51 the little girl-“Germany”, without understanding where or what it  52 is. We do not know the way. We do not know how to read the map. We do not know if we can find   53 along the way to eat in. But the little girl knows the most  54 thing-Daddy is driving-and so she is safe and secure. She knows that her Daddy will 55  all that she needs.
小题1:
A.occasionallyB.suddenlyC.casuallyD.continuously
小题2:
A.travelledB.runC.walkedD.lived
小题3:
A.happyB.excitedC.scaredD.bored
小题4:
A.farmB.houseC.officeD.hospital
小题5:
A.nameB.wayC.languageD.family
小题6:
A.safelyB.dangerouslyC.hurriedlyD.slowly
小题7:
A.waitedB.brokeC.spokeD.repeated
小题8:
A.SoB.BecauseC.ButD.When
小题9:
A.awakeB.deadC.asleepD.ill
小题10:
A.looking aroundB.coming aboutC.getting throughD.going out
小题11:
A.whenB.whyC.howD.where
小题12:
A.cryingB.laughingC.helpingD.driving
小题13:
A.troubleB.laborC.enjoymentD.strength
小题14:
A.fearsB.achievementsC.prizesD.successes
小题15:
A.guessB.knowC.findD.search
小题16:
A.beyondB.unlikeC.likeD.despite
小题17:
A.reallyB.neverC.doubtfullyD.finally
小题18:
A.stationsB.shopsC.librariesD.restaurants
小题19:
A.necessaryB.importantC.generalD.normal
小题20:
A.buyB.lendC.provideD.steal
题型:单项选择题 案例分析题
下列估测数据,符合实际情况的是(  )

A.人的拇指宽约为10cm

B.人体正常体温约为40℃

C.一个中学生的体重约为500N

D.成年人步行速度约为12m/s

题型:单项选择题 案例分析题

商品流通企业财务管理的环境包括法律环境、金融环境和经济环境,()是企业最为主要的环境因素。

A.法律环境

B.金融环境

C.经济环境

D.都不是

题型:单项选择题 案例分析题

锅炉负荷变化时,汽包水位的变化过程是怎样的?

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