求未知数X. (1)23X+12X=4.2(2)25:0.9=X:4.5.

题型:解答题

问题:

求未知数X.
(1)
2
3
X+
1
2
X=4.2
(2)25:0.9=X:4.5.
考点:解方程
题型:解答题

根据国际经验,人均GDP达到1000美元左右时,各国居民消费率一般为61%,而中国的居民消费率自1978年以来一直在53%以下,并且逐年下降,最低曾达到38.2%。回答18~20题。对我国居民消费率逐步走低原因的正确认识是

①居民的收入增长缓慢  ②居民的收入预期比较低  ③我国居民消费趋于饱和  ④人们收入差距拉大,造成社会总体消费水平低

A.①②③

B.②③④

C.①③④

D.①②④

题型:解答题
How often do you let other people’s nonsense change your mood? Do you let a bad driver, impolite waiter, rude boss, or an insensitive employee      your day?
One day I was in a taxi and we headed      the airport. We were driving in the right lane      suddenly a black car drove out of a parking space right in front of us. My taxi driver slammed on his brakes, slide sideways, and at the very last moment our car stopped and narrowly      the other car by just inches!The driver of the other car looked around and started      at us.
My taxi driver just      and waved at the guy. And I mean he was really     . So I asked, “Why did you just do that? This guy almost ruined your car and sent us to the hospital!”This is when my taxi driver taught me what I now call “The Law of the Garbage Truck”.
He       that many people are like garbage trucks. They run around full of     , full of frustration, full of anger, and full of disappointment. As their garbage      up, they need a place to dump (倒) it and sometimes they’ll dump it on     . Don’t take it personally. Just smile, wave, wish them well, and move on.
Believe me. You’ll be more     . Don’t take their garbage and      it to other people at work, at home, or on the streets, Life’s too short to wake up in the morning with     . The mark of your success is how quickly you can refocus on what’s       in your life. Roy Baumeister, a psychology researcher from Florida State University, found in his extensive research that you       bad things more often than good things in your life. You store the bad memories rather easily, and you      them more frequently.
So...Love the people who treat you right. Ignore the ones who don’t. Life is ten percent what you make it and ninety percent how you       it!
When you follow “The Law of the Garbage Truck”, you take back control of your life. You make room for the good by       go of the bad. Have a Garbage Free Day!Have a marvelous, garbage-free day!The seeds you plant today      the harvest you reap tomorrow.
小题1:
A.injureB.ruinC.hurtD.harm
小题2:
A.throughB.fromC.inD.for
小题3:
A.whileB.whenC.sinceD.as
小题4:
A.knockedB.overtookC.missedD.left
小题5:
A.laughingB.throwingC.glancingD.yelling
小题6:
A.wonderedB.smiledC.ignoredD.guessed
小题7:
A.friendlyB.angryC.frightenedD.disappointed
小题8:
A.showedB.suggestedC.explainedD.hated
小题9:
A.expectationB.passengersC.garbageD.goods
小题10:
A.turnsB.pushesC.holdsD.piles
小题11:
A.roadsB.childrenC.youD.dustbins
小题12:
A.healthyB.happyC.pitifulD.wealthy
小题13:
A.spreadB.shareC.explainD.contribute
小题14:
A.surpriseB.pleasureC.doubtD.regrets
小题15:
A.funnyB.importantC.strangeD.embarrassing
小题16:
A.rememberB.forgetC.valueD.appreciate
小题17:
A.enjoyB.exchange C.recallD.imagine
小题18:
A.inspireB.takeC.mendD.notice
小题19:
A.lettingB.consistingC.makingD.dreaming
小题20:
A.distinguishB.deserveC.deliverD.determine
题型:解答题

下列气体均被计入空气污染指数的一组是(  )

A.二氧化硫、二氧化氮、氮气

B.二氧化硫、二氧化氮、一氧化碳

C.二氧化硫、一氧化碳、二氧化碳

D.二氧化氮、一氧化碳、水蒸气

题型:解答题

(8分)为减少大气污染,一些城市公共汽车逐步使用CNG(压缩天然气)清洁燃料,实验测得0.16g该气体燃料,完全燃烧生成224mLCO2(标准状况)和0.36g液态水,并放出8.903KJ的热量。请写出:

CNG的化学式          ,其完全燃烧的热化学方程式                      

题型:解答题

金信卡卡片激活业务须到原开卡网点办理。

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