求高手解答案,急啊,谢谢!一、单选题（共 20 道试题,共 80 分.）V1.
Mathematics ________ the study or science of numbers.A. isB. areC. wasD. were
Professor Smith promised to look ________ my paper, that is, to read it carefully before th_百度作业帮
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求高手解答案,急啊,谢谢!一、单选题（共 20 道试题,共 80 分.）V1.
Mathematics ________ the study or science of numbers.A. isB. areC. wasD. were
Professor Smith promised to look ________ my paper, that is, to read it carefully before th
一、单选题（共 20 道试题,共 80 分.）V1.
Mathematics ________ the study or science of numbers.A. isB. areC. wasD. were
Professor Smith promised to look ________ my paper, that is, to read it carefully before the thesis defense.A. afterB. overC. onD. into
It’s bad _________ for you to smoke in the public places where smoking is not allowed.A. behaviorB. actionC. mannerD. movement
How can he ________ if he is not ________?A. hearingB. listeningC. heardD. listened to
It's important for you to make a list of your tasks in order of _______ when you work on a project.A. suggestionB. goalC. priorityD. tip
The chemical factory was _________ the new policy, believing it would ensure fair competition.A. in spite ofB. in honor ofC. in favor ofD. in the name of
I invited Joe and Linda to dinner, but _________ of them came.A. neitherB. eitherC. noneD. both
After the Minister of Education had finished speaking at the press conference, he was made ________ all sorts of awkward questions.A. answerB. answeringC. answeredD. to answer
They got a ________ result, and they were wild with joy.A. magicB. magicianC. magneticD. magical
The bridge was named _______ the hero who gave his life for the cause of the people.A. afterB. forC. because ofD. before
Coal was formed out of dead forests by a long and slow _______ of chemical change.A. pressB. procedureC. successD. process
I don’t know the park, but it’s ________ to be quite beautiful.A. saidB. toldC. spokenD. talked
What is the train ________ to Birmingham?A. feeB. tipC. fareD. cost
It is not an ________ method to learn a language by focusing on a large vocabulary only.A. effectB. affectionateC. efficientD. affected
We all know that there are ________ ways of getting to know a person.A. varyingB. varietyC. variousD. various of
Tom was once c ________ he would not trust anyone.A. henceB. sinceC. neverthelessD. however
Their efforts to improve the production have been very _________, and they have been praised by the company for their contribution.A. effectiveB. efficientC. effectD. affective
How much has the company ________ this year?A. brought inB. brought downC. brought outD. brought about
Before falling asleep, Helen ________ the day's happenings. However, she couldn't recall who put forward that plan in the first place.A. repeatedB. reviewedC. reportedD. retained
New businesses _________ in this area due to the new policy adopted recently.A. thriveB. succeedC. completeD. achieve
一、单选题（共 20 道试题,共 80 分.）V1.Mathematics ___A_____ the study or science of numbers.A.isB.areC.wasD.were 满分：4 分2.Professor Smith promised to look ___D_____ my paper,that is,to read it carefully before the thesis defense.A.afterB.overC.onD.into 满分：4 分3.It’s bad ___C______ for you to smoke in the public places where smoking is not allowed.A.behaviorB.actionC.mannerD.movement 满分：4 分4.How can he __B______ if he is not ________?A. hearingB. listeningC. heardD. listened to 满分：4 分5.It's important for you to make a list of your tasks in order of __C_____ when you work on a project.A.suggestionB.goalC.priorityD.tip 满分：4 分6.The chemical factory was ___C______ the new policy,believing it would ensure fair competition.A.in spite ofB.in honor ofC.in favor ofD.in the name of 满分：4 分7.I invited Joe and Linda to dinner,but ____A_____ of them came.A.neitherB.eitherC.noneD.both 满分：4 分8.After the Minister of Education had finished speaking at the press conference,he was made __D______ all sorts of awkward questions.A.answerB.answeringC.answeredD.to answer 满分：4 分9.They got a ____A____ result,and they were wild with joy.A.magicB.magicianC.magneticD.magical 满分：4 分10.The bridge was named ___A____ the hero who gave his life for the cause of the people.A.afterB.forC.because ofD.before 满分：4 分11.Coal was formed out of dead forests by a long and slow ___D____ of chemical change.A.pressB.procedureC.successD.process 满分：4 分12.I don’t know the park,but it’s ___A_____ to be quite beautiful.A.saidB.toldC.spokenD.talked 满分：4 分13.What is the train ___C_____ to Birmingham?A.feeB.tipC.fareD.cost 满分：4 分14.It is not an __C______ method to learn a language by focusing on a large vocabulary only.A.effectB.affectionateC.efficientD.affected 满分：4 分15.We all know that there are ___C_____ ways of getting to know a person.A.varyingB.varietyC.variousD.various of 满分：4 分16.Tom was once c ____A____ he would not trust anyone.A.henceB.sinceC.neverthelessD.however 满分：4 分17.Their efforts to improve the production have been very ____A_____,and they have been praised by the company for their contribution.A.effectiveB.efficientC.effectD.affective 满分：4 分18.How much has the company ___D_____ this year?A.brought inB.brought downC.brought outD.brought about 满分：4 分19.Before falling asleep,Helen ____B____ the day's happenings.However,she couldn't recall who put forward that plan in the first place.A.repeatedB.reviewedC.reportedD.retained 满分：4 分20.New businesses _____A____ in this area due to the new policy adopted recently.A.pleteD.achieve 满分：4 分
ADCBCCADDADACCCAAABA急急急啊！求解答_百度知道
急急急啊！求解答
-1）分之a+1+（根号a&#178（1）当a＞1时，化简a+1-（根号a&#178：（根号5+根号2）（根号2+根号3）分之根号5+3倍根号3+4倍根号2
（4）已知x=4分之1;-1）
（2）化简;-1）分之a+1-（根号a²-1）+a+1+（根号a&#178
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如果满意记得采纳如果有其他问题请采纳本题后另发点击向我求助;3=(3√3-6√2+3√5)&#47；
（2）化简;(5-2)(3-2)=(√5+3√3+4√2)(√15-√10-√6+2)&#47，请谅解;4）已知x=4分之1;2×1/-1）分之a+1+（根号a²3=(5√3-5√2-√30+2√5+9√5-3√30-9√2+6√3+4√30-8√5-8√3+8√2)&#47，答题不易，skyhunter002为您答疑解惑如果本题有什么不明白可以追问（1）当a＞1时;-1） =a+1+a+1=2a+2：（根号5+根号2）（根号2+根号3）分之根号5+3倍根号3+4倍根号2
=（√5+3√3+4√2）(√5-√2)(√3-√2)/3=√3-2√2+√5;-1）+a+1+（根号a²您好;8，谢谢;4×1+6×1/4×2=1&#47，求2分之1x倍根号4x+6x乘（根号x分之1）=1&#47，很高兴为您解答，化简a+1-（根号a²8+3=25/-1）分之a+1-（根号a&#178
打错了· 不好意思 是 已知x=4分之1，求2分之1x倍根号4x+6x乘（根号9分之x）-2x²-（根号x分之1）
已知x=4分之1，2分之1x倍根号4x+6x乘（根号9分之x）-2x²-（根号x分之1）=x/2×√4x+6x×√x/9-2x²-√1/x=1/4×1/2×√1+6×1/2×√1/36-2×1/16-2=1/8+1/2-1/8-2=-3/2;您好，很高兴为您解答，skyhunter002为您答疑解惑如果本题有什么不明白可以追问，如果满意记得采纳如果有其他问题请采纳本题后另发点击向我求助，答题不易，请谅解，谢谢。祝学习进步
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