(四)开放题 15.如果两个等腰三角形 .那么这两个等腰三角形全等.(只填一种能使结论成立的条件即可) 查看更多

 

题目列表(包括答案和解析)

下面是马小跳同学计算的四道题,其中错误的是(  )

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阅读下面短文,从短文后所给各题的四个选项(A、B、C、D)中选出能填入空白处的最佳选项,并在答题卡上将该项涂黑。
Using All Your Strength
A young boy was walking with his father along a country road. When they came across a large tree branch   11  the pathway, the boy asked, “Do you think I could   12  it?”
His father answered, “If you use all your strength, I am sure you can.”
The boy tried   13  to lift, pull and push the branch, but it wouldn’t budge.  14 , he said, “Dad, you were wrong. I can’t do it alone.”
“Try again,” his dad said.
This time, as the boy struggled, his father   15    him. Together they pushed the   16  
aside.
“Son, the first time you didn’t use all your strength,” his father said. “You didn’t ask me to help.”
This is a valuable   17 . There are many things we can’t do alone, but that doesn’t mean we can’t get them done. We are   18      by resources that can be mobilized (调动) to help us
  19  our goals including family, friends and faith.
Sometimes we   20  to ask for help because of   21  or stubbornness. Sometimes we think it is a sign of   22  to admit we need a hand. Sometimes we don’t even   23      
asking for help. Whatever the reason is, it is a waste.
It’s   24  that we learn to use all our strength. This includes inner resources such as discipline, courage, and even love. It also includes   25  resources. Just as we should be willing to help others, we should be willing to ask others for help.
【小题1】.
A.fallingB.stoppingC.blockingD.cutting
【小题2】.
A.liftB.moveC.carryD.throw
【小题3】.
A.mightilyB.carefullyC.hardlyD.painfully
【小题4】.
A.ExcitedB.SurprisedC.DiscouragedD.Unexpected
【小题5】.
A.taughtB.joinedC.pushedD.praised
【小题6】.
A.stoneB.branchC.roadD.tree
【小题7】.
A.jobB.wayC.lessonD.resource
【小题8】.
A.hiddenB.cheatedC.coveredD.surrounded
【小题9】.
A.setB.changeC.achieveD.discover
【小题10】.
A.tryB.failC.manageD.stop
【小题11】.
A.prideB.moodC.pityD.strength
【小题12】.
A.politenessB.slightnessC.kindnessD.weakness
【小题13】.
A.use upB.refer toC.think aboutD.carry out
【小题14】.
A.importantB.likelyC.possibleD.acceptable
【小题15】.
A.anotherB.outerC.naturalD.further

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下面是马小跳同学计算的四道题,其中错误的是(  )
A.0÷2=0B.(-5)÷(-
1
2
)=(-5)×(-2)
C.
1
5
÷(-5)=5×(-5)
D.(-
1
2
)÷(-
1
2
)=1

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(开放题)据有关人士介绍,1995年,我国函件总量为79.6亿件,1996年下降到78.7亿件,1997年为70亿件,下降了12%,1998年仍在缓慢下降,根据1998年上半年的统计数字,在全国邮政业务总量中,信函从去年同期的14.03%下降到11.41%,目前,我国人均信函总量每年只有6.6亿件.

(1)选择适当的统计图反映从1995年到1998年这四年来我国信函总量变化的情况.

(2)分析这种变化不能光看数据,还要联系生活实际.

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(2011•梅州)为了鼓励城区居民节约用水,某市规定用水收费标准如下:每户每月的用水量不超过20度时(1度=1米3),水费为a元/度;超过20度时,不超过部分仍为a元/度,超过部分为b元/度.已知某用户四份用水15度,交水费22.5元,五月份用水30度,交水费50元.
(1)求a,b的值;
(2)若估计该用户六月份的水费支出不少于60元,但不超过90元,求该用户六月份的用水量x的取值范围.

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