若方程kx2+2x=2x2+1是关于x的一元二次方程,则实数k应满足的条件是__

题型:填空题

问题:

若方程kx2+2x=2x2+1是关于x的一元二次方程,则实数k应满足的条件是______.

考点:一元二次方程的定义
题型:填空题
完形填空(共12分,每小题1分)
阅读下面的短文,掌握其大意,然后从短文后各题所给的A、B、C、D四个选项中,选择最佳选项。
As sixth graders, kids were separating into groups, but I wasn't sure where I belonged.
Our teacher gave us a task called "secret friends" for the coming week.We were supposed to do nice things     our friends without letting them know who was doing it.We could leave  encouraging notes or cards either on their desks or in their bags.Before doing the task, with our eyes closed, from a basket, we        a name of a classmate who we were to secretly befriend over the next five days.
Soon, the task was turned into a competition of giving       instead of notes.Everyone was getting cool presents except me.My friend exactly       what the teacher had told us.So I received nothing but hand-made cards with nice words about me.
On the last morning, I finally got a package.When I       it, the girls around all       .It was an "old lady" gift.My face went red.
I tried to forget about the shaming gift, but when the same girls       it again during the break in the bathroom, I joined in, "How stupid! My grandmother wouldn't       want it." The girls laughed at my words and went out of the bathroom.Washing my hands, I let the water run through my fingers       I thought about my words.It wasn't       like me to say things like that.
"I'm your secret friend." It was Rochelle." I' m sorry about the gift," she said to me, tears running down her face.
From a poor family, she was a target(目标) at school for those with rich parents.Yet she just took all the terrible treatment silently.
I was sick to my stomach as my       words ran through my mind.She had heard everything.How could I have been so unkind?
Later I learned she had felt bad all week about not being able to leave me any cool present and her mum had given up her only luxury(奢侈品).
And I had destroyed everything for her.
I told her that I had only said those things to try to fit in.
"We aren't that different from each other, are we?" She smiled understandingly.Her simple      , spoken from her heart, found their way straight into mine.
小题1:
A.forB.behindC.throughD.like
小题2:
A.drewB.changedC.foundD.picked
小题3:
A.chancesB.helpC.hopeD.gifts
小题4:
A.learnedB.copiedC.followedD.understood
小题5:
A.discoveredB.openedC.caughtD.held
小题6:
A.cheeredB.shoutedC.laughedD.clapped
小题7:
A.mentionedB.sawC.showedD.suggested
小题8:
A.justB.everC.evenD.only
小题9:
A.ifB.asC.sinceD.because
小题10:
A.exactlyB.perfectlyC.normallyD.necessarily
小题11:
A.powerfulB.hurtfulC.usefulD.helpful
小题12:
A.cardsB.actionsC.choicesD.words
题型:填空题

“人心齐,泰山移”这句话表明[ ]

A、个人的力量是渺小的

B、没有合作,会一事无成

C、个人离不开集体

D、团结合作能够产生巨大的力量,战胜困难

题型:填空题

Internet使用TCP/IP协议实现了全球范围的计算机网络的互联,连接在Internet上的每一台主机都有IP地址,其中C类地址用于主机数目不超过254的网络。下面的4个IP地址中哪一个是C类IP地址______

A.202.119.32.68

B.25.10.35.48

C.130.24.0.8

D.27.254.62.1

题型:填空题

()应按法律法规和工程建设强制性标准实施监理,并对建设工程安全生产承担监理责任。

A.建设单位

B.项目经理

C.监理单位

D.监理工程师

E.施工单位

题型:填空题

电力系统非正常情况下,供电频率允许偏差不应超过多少赫兹().

A.±0.5赫兹

B.±0.2赫兹

C.±1.0赫兹

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