如图所示,绝热气缸中间用固定栓将可无摩擦移动的导热隔板固定,隔板质量不计,左右两

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问题:

如图所示,绝热气缸中间用固定栓将可无摩擦移动的导热隔板固定,隔板质量不计,左右两室分别充有一定量的氢气和氧气(视为理想气体).初始时,两室气体的温度相等,氢气的压强大于氧气的压强,松开固定栓直至系统重新达到平衡,下列说法中正确的是(  )

A.初始时氢分子的平均动能大于氧分子的平均动能

B.系统重新达到平衡时,氢气的内能比初始时的小

C.松开固定栓直至系统重新达到平衡的过程中有热量从氧气传递到氢气

D.松开固定栓直至系统重新达到平衡的过程中,氧气的内能先增大后减小

考点:温度和温标做功和内能热传递和内能热力学第一定律理想气体
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My friend Michelle is blind, but you’d never know it. She makes such good use of her other    , including her “sixth sense”,   she rarely gives the impression she’s missed anything.
Michelle looks after her children pretty much like the rest of us, except that she doesn’t push too hard on them, who really benefit a lot from her relaxed attitude. She knows when to clean the house, she moves around so fast that often the    don't realize she's blind.
I realize this the first time after my six-year-old daughter, Kayla, went to play there. When Kayla came home, she was very   about her day. She told me they had baked cookies, played games and done art projects. But she was   excited about her finger-painting project.
“Mom, guess what?”said Kayla, all smiles. “I learned how to      colors today! Blue and red make purple, and yellow and blue make green! And Michelle      with us.”
To my great      my child had learnt about color from a blind friend!
Then Kayla continued, “Michelle told me my      showed joy, pride and a sense of accomplishment. She really     what I was doing!’’ Kayla said she had never felt how good finger paints felt     Michelle showed her how to paint without looking at her paper.
I realized Kayla didn’t know that Michelle was blind. It had just never come up in conversation.
When I told her, she was      for a moment. At first, she didn’t believe me. “But Mommy, Michelle knew exactly what was in my picture!” Kayla     . And I knew my child was      because Michelle had listened to Kayla describe her artwork. Michelle had also heard Kayla's pride in her work.
We were silent for a minute.Then Kayla said slowly, “You know, Mommy, Michelle really did ‘see’ my picture. She just used my      .’’ Indeed, she uses a special type of “vision” that all mothers have.
小题1:
A.waysB.meansC.methodsD.senses
小题2:
A.whichB.whenC.thatD.as
小题3:
A.guestsB.familyC.childrenD.friends
小题4:
A.excitedB.sadC.satisfiedD.enjoyed
小题5:
A.especiallyB.not soC.a littleD.not at all
小题6:
A.paintB.drawC.mixD.create
小题7:
A.stayedB.paintedC.talkedD.played
小题8:
A.excitementB.encouragementC.delightD.surprise
小题9:
A.attitudeB.colorC.pictureD.paper
小题10:
A.touchedB.distinguishedC.sawD.understood
小题11:
A.afterB.beforeC.untilD.when
小题12:
A.curiousB.quietC.puzzledD.worried
小题13:
A.criedB.insistedC.complained D.informed
小题14:
A.rightB.wrongC.worriedD.uncertain
小题15:
A.paperB.pensC.handsD.eyes
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RA特异性皮肤表现是()

A.皮下结节

B.皮肤干燥脱屑

C.褐色色素沉着

D.局部溃破坏死

E.局部肿胀疼痛

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对于20辆编组的空调旅客列车,用电量可达到()左右。

A.400KW

B.500KW

C.700KW

D.800KW

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电子信息系统运行中断将造成重大的经济损失及公共场所秩序严重混乱的机房为()级。

A.A

B.B

C.C

D.D

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承兑人是指接受汇票出票人的付款委托,同意承担支付票款义务的人。 (  )

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