某家庭电路上接有一台100W的电冰箱和两盏40W的日光灯,现要再使用一个20W的

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问题:

某家庭电路上接有一台100W的电冰箱和两盏40W的日光灯,现要再使用一个20W的台灯,每当把台灯的插头插进插座时,电路里额定电流为1A的保险丝就熔断,发生这种现象的原因可能是[ ]

A、用电器的总功率太大

B、电冰箱电路时断时通

C、日光灯管损坏

D、台灯的插头内部有短路

考点:电路的三种状态:通路、短路和断路
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澳大利亚船位报告系统中,电报冠词DR表示该报为().

A.航行计划报告

B.船位报告

C.改航报告

D.最后报告

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If you want your life to stand for peace and kindness, it’s helpful to do kind, peaceful things. One of my  16 ways to do this is by developing my own 17 actions. These little acts of kindness are  18  to be of service and reminders of how good it feels to be  19  and helpful.
We live in a rural area of the San Francisco Bay Area. Most of what we see is beauty and 20  .One of the exceptions to the beauty is the  21 that some people throw out of their windows as they are  22 on the rural roads. One of the few drawbacks to  23  the mountainous area is that public services, such as litter collection, are less  24  than those are closer to the city.
   A helping action that I practice  25  with my two children is picking up litter in our surrounding area. We' ve become so  26  to doing this that my daughters will often say to me in exciting  27 , "There' s some litter, Daddy, stop the  28  !" And if we have time, we will often pull over and pick it up. It may seem  29  , but we actually enjoy it. We pick up litter in parks, on sidewalks, practically  30 . Once I even saw a complete stranger picking up litter close to  31  we live. He smiled at me and said, "I saw you doing it, and it seemed like a good       32 ."
Picking up litter is only one of an  33  supply of possible helping actions. You might like holding a door open for people,  34  lonely elderly people in nursing homes, or removing snow off someone else' s driveway. Perhaps you might  35  something that seems effortless yet helpful. It' s fun, personally rewarding, and setting a good example. Everyone wins.
小题1:
A.favoriteB.familiarC.difficultD.different
小题2:
A.takingB.placingC.passingD.helping
小题3:
A.customsB.ceremoniesC.opportunitiesD.occasions
小题4:
A.cruelB.kindC.proudD.brave
小题5:
A.scienceB.weatherC.universeD.nature
小题6:
A.listB.guidebookC.litterD.check
小题7:
A.drivingB.directingC.floatingD.flying
小题8:
A.search forB.live inC.look atD.march into
小题9:
A.acceptableB.availableC.horribleD.honorable
小题10:
A.regularlyB.completelyC.calmlyD.roughly
小题11:
A.opposedB.reducedC.devotedD.accustomed
小题12:
A.lungsB.voicesC.soundsD.noises
小题13:
A.horseB.carriageC.bikeD.car
小题14:
A.strangeB.sensitiveC.imaginableD.necessary
小题15:
A.nowhereB.anywhereC.somewhereD.everywhere
小题16:
A.whyB.whenC.whichD.where
小题17:
A.ideaB.planC.excuseD.feel
小题18:
A.emptyB.endlessC.immediateD.attractive
小题19:
A.describing B.developingC.visitingD.valuing
小题20:
A.ask forB.look intoC.carry outD.think of
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试结合作品分析《诗经》农业生活诗的社会历史价值及文学价值。

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以下程序运行后的输出结果是______。 fun(int a) { int b=0; static int c=3; b++:c++; return (a+b+c); } main() { int i,a=5;for (i=0;i<3;i++)pruntf("%d%d",i,fun(a));printf("\n"); }

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液体分子极性越强杂质分子电离越困难。

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