某基础工程土方开挖总量为10000m3,该工程拟分10个施工段组织固定节拍流水施工,

题型:单项选择题

问题:

某基础工程土方开挖总量为10000m3,该工程拟分10个施工段组织固定节拍流水施工,两台挖掘机的台班定额均为100m3/台班,其流水节拍应为( )天。

A.100

B.50

C.10

D.5

考点:监理工程师(建设部)建设工程质量、投资、进度控制建设工程质量、投资、进度控制
题型:单项选择题

若两个方程x2+ax+b=0和x2+bx+a=0只有一个公共根,则(  )

A.a=b

B.a+b=0

C.a+b=1

D.a+b=-1

题型:单项选择题
设函数f(x)=3
4+3x-x2

(1)求函数的定义域;
(2)求函数的值域;
(3)求函数的单调区间.
题型:单项选择题
I sat next to my close friend,Tina,in my history class.Our teacher,Miss Turner announced a new   .We were to create a    about cultures.As required,we wrote the names of two friends we wanted in our group.Miss Turner informed us that she would   our choices and let us know the result.I had no   that I would work with Tina because I knew we had chosen each other.
The next day,I waited anxiously when Miss Turner started to call out  .When she reached group three,Tina was called.   ,my name was not included.“There must have been some   !"I thought to myself.
Than I heard    .The last group with Mauro and Karina! How   ! How could I face being in that group—the boy who hardly spoke English and the girl who wore   clothes a11 the time?
I went to Miss Turner to   I should be in a “good” group.She gently placed a hand on my shoulder.“I know what you want,Rachael,”she said,but your group you more.Only you can help them get an ideal      .Will you help them?"
I   walked to where the others in my group sat. Halfway through the week, I     myself enjoying working with my partners.There was no need to     —I grew sincerely interested in learning something about then. Mauro, I found out, was   with English after he came to this country. Karina wanted to be a fashion designer and she had a lot of   ideas.They were the ones no one cared enough about to try to understand—except Miss Turner.
Miss Turner gave us an A on that newspaper. But I think she is the one who truly     it. I really   that Miss Turner gave me a chance to see other people in a new light.
小题1:
A.plan B.subjectC.projectD.lesson
小题2:
A.story B.group C.testD.newspaper
小题3:
A.make use ofB.pay attention to
C.put into practiceD.take into consideration
小题4:
A.idea B.doubt C.intentionD.promise
小题5:
A.namesB.numbersC.students D.topics
小题6:
A.BesidesB.HoweverC.Thus D.Finally
小题7:
A.mistakeB.coincidenceC.problemD.reason
小题8:
A.her B.itC.them D.him
小题9:
A.interestingB.amusingC.annoyingD.disappointing
小题10:
A.dirtyB.plain C.strangeD.formal
小题11:
A.warnB.remind C.requestD.inform
小题12:
A.needsB.refusesC.missesD.ignores
小题13:
A.designB.jobC.chanceD.grade
小题14:
A.slowly B.swiftlyC.suddenlyD.bravely
小题15:
A.foundB.keptC.hadD.set
小题16:
A.speakB.pretendC.refuseD.panic
小题17:
A.dealing B.helpingC.beginningD.struggling
小题18:
A.funnyB.generalC.brightD.new
小题19:
A.offeredB.deservedC.neglected D.proved
小题20:
A.believedB.appreciatedC.admittedD.agreed
题型:单项选择题

在一箱未成熟的柿子中,放入几个成熟的梨,结果柿子很快就成熟了,发挥作用的激素是()

A.生长素

B.赤霉素

C.乙烯

D.细胞分裂素

题型:单项选择题

为什么调节系统要把稳定性作为调节系统的首要?

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