最近我市某大商场发生一次特大火灾,造成重大经济损失.在灭火时,消防人员用高压水枪

题型:问答题

问题:

最近我市某大商场发生一次特大火灾,造成重大经济损失.在灭火时,消防人员用高压水枪喷水灭火.水在灭火中的作用主要是(  )

A.降低燃烧物的着火点

B.防止燃烧产物污染空气

C.降低温度到燃烧物着火点以下

D.水可分解出不助燃物质以隔绝空气

考点:灭火的原理和方法
题型:问答题

阅读短文,判断下列句子正(T)误(F)。

Dear Zhang Peng,         

        How are you! I'm very busy now. I have to move to the village with my parents tomorrow. Now, my 

room is a mess (混乱). The chair is on the desk. All of my clothes are on the bed. My shoes are in the boxes. 

There is a big box on the end table. The shoes are all under the table. The TV is on the other end table. Are you 

busy?                                                                                 

                                                                                                                                          Best wishes

                                                                                                                                          Yours Linda

( ) 1. Linda's room is clean.       

( ) 2. The desk is under the chair.       

( ) 3. There are many clothes in the closet.        

( ) 4. There aren't shoes in the boxes.       

( ) 5. There aren't shoes under the table.  

题型:问答题
It is interesting to observe the way in which children so often react against their parents’ ideas, while at the same time 36 their parent’s characteristics. This is to say, the children grow up to have different 37 from their parents, yet to have 38 personalities. There is a 39 going on in the toy world at present over 40 children should be encouraged to have war toys. I do not see any 41 in forbidding them when I think of the 42 of my friend Henry.
Henry is the son of strict parents who were against war. He was never 43 toy soldiers or guns as a 44.
Henry 45 and went into the army, becoming a first-class soldier and 46 all sorts of honors in the army. In that way he became the 47 of what his parents might have 48 of their son. And yet there is a gentleness about Henry which shows a  49 personality. His sympathies(同情) which I can see must have come from his 50. 51 doing things differently from our parents, a lot of the 52 gets passed on.
Parents have to 53 their children what they believe to be right; but it is not much your ideas that the children 54 your example. Perhaps the best way to teach one’s child gentleness is not to forbid toy guns, but to be 55 in one’s own everyday life.
小题1:
A.studyingB.keepingC.changingD.cutting
小题2:
A.viewsB.charactersC.appearanceD.behavior
小题3:
A.differentB.specialC.perfectD.similar
小题4:
A.fightB.quarrelC.speechD.problem
小题5:
A.whenB.whetherC.whyD.how
小题6:
A.wayB.harmC.pointD.idea
小题7:
A.pastB.mistakeC.exampleD.experience
小题8:
A.allowedB.encouragedC.givenD.found
小题9:
A.sonB.boyC.pupilD.person
小题10:
A.gave upB.ended upC.grew upD.rose up
小题11:
A.winningB.acceptingC.losingD.refusing
小题12:
A.extremeB.specialC.officerD.opposite
小题13:
A.expectedB.thoughtC.spokeD.proved
小题14:
A.powerfulB.silentC.peacefulD.calm
小题15:
A.familyB.friendsC.soldiersD.brothers
小题16:
A.In spite ofB.Instead ofC.Because ofD.Though
小题17:
A.knowledgeB.moneyC.happinessD.spirit
小题18:
A.realizeB.teachC.forbidD.deliver
小题19:
A.follow B.examineC.acceptD.support
小题20:
A.strict B.gentleC.differentD.sympathetic
题型:问答题

散热器常见故障有哪些?如何修理?

题型:问答题

寒湿腰痛主方

A.肾著汤
B.金匮肾气丸
C.右归丸
D.独活寄生汤
E.附子汤

题型:问答题

焦炭的固定碳含量的高低主要取决于焦炭中的挥发分。()

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