更多内容推荐
-
二次根式有意义时,x的取值范围是()A.x≥B.x≤﹣C.x≥﹣D.x≤-八年级数学
-
Look at the timetable (时刻表). Hurry up! Flight 4026 _______ off at 18:20.A.takesB.tookC.will be taken
-
187. Bill Gates has made it known that much of his wealth _______ to the society.A.will leaveB.has l
-
—Sorry to have interrupted you. Please go on. —where was I?—You ____ you didn’t like your father’s j
-
Three years ____ a long time for us students.A.areB.beC.isD.have been-高三英语
-
Hay, I _________ to meet you here. How long have you been here? A. don’t expectB didn’t expect C. h
-
The police questioned William closely and he finally admitted ________the car.A.to stealB.having sto
-
No decision __about any future appointment until all the candidates have been interviewed.A.will be
-
Customers are asked to make sure that they ____ the right change before leaving the shop.A.will give
-
Those boys _____ many times not to go on line, but it doesn’t make any difference.A.have toldB.toldC
-
--- Do you love teaching, Miss He?--- I fell in love with teaching in 2000. I ________ for twelve ye
-
---Remember how we met for the first time, Dick?---Of course I do. You _________ to the teachers
-
---Don't put the waste on the ground. ---Oh, I'm very sorry. I ________ the dustbin(垃圾箱) t
-
(2011?菏泽)使有意义的x的取值范围是.-八年级数学
-
(2011?菏泽)实数a在数轴上的位置如图所示,则化简后为()A.7B.﹣7C.2a﹣15D.无法确定-八年级数学
-
(11·西宁)若二次根式有意义,则x的取值范围是_▲.-八年级数学
-
—Is there anything wrong, Bob? You look sad. —Oh, nothing much. In fact, I _____ of my friends back
-
已知二次根式与最简二次根式是同类二次根式,则x值为-八年级数学
-
30.Mr. Li arrived at the Wuguang train station twenty minutes ago, but the train to Guangzhou_______
-
Hurry up! The shop __ in five minutes.A.closes B.is closing C.has closed D.is about to close-高一英语
-
I’m tired out. I__________all afternoon and I don’t seem to have finished anything.A.shoppedB.have s
-
The version _______ to be closest to the author’s original now belongs to a national museum in Paris
-
As high school students, it’s very important to keep ourselves ______ of what’s happening home and
-
——Mike, have you heard that Mr. Black knocked down a girl and hurt her badly yesterday morning. ——Y
-
—What were you doing when I phoned you last night? —I my painting and was starting to take a bath.A
-
The Russian rocket designer has died. For many years, he ______ as an important assistant to the fat
-
A lot of attention ______ to greenhouse gas emission. Look at those environmental posters.A.is payin
-
Sean’s strong love for his country is in his recently published poems.A.relievedB.reflectedC.respond
-
Mr. Lee, who as a guide for over 10 years, is now a manager in a big travel agency.A.workedB.has wor
-
When I was a little child, Father told me the earth ___ round then sun.A.turnB.turnedC.is turnedD.tu
-
(2011贵州六盘水,15,4分)一个正方形的面积是20,通过估算,它的边长在整数_______与_______之间。-八年级数学
-
She__________to the office than she got down to writing the report.A.has no sooner gotB.had hardly
-
The boy was curious about how the waste paper was into a model kite.A.improvedB.unitedC.transformedD
-
—I phoned you at 9 this morning but got no answer.—I am sorry. I _____ the bell. I _____ in the gard
-
—Why does the lake smell terrible?—Because large quantities of water______.A.have pollutedB.is being
-
— When will they leave? — They _____ very soon. New term _____ on September 1st. [ ]A. do leave; beg
-
计算(1)22+18-48(2)512+1248-623×2.-数学
-
计算:75+92-200-数学
-
A few minutes earlier, and you would have seen the NBA star. But you ________.A.won't comeB.don
-
------Sleep well last night? ------Far from that! My next-door neighbor music pretty loud.A.playsB.h
-
------Why do you turn back?------ Oh, the bridge ahead_______.A.is being repairedB.is repairingC.is
-
The price of agriculture products _______ since the beginning of last year.A.is going up B.had gone
-
My dictionary ________ . I have looked for it everywhere but still ______ it . A.has lost ; do not f
-
(2011贵州六盘水,1,3分)下列实数中,无理数是()A.-2B.0C.D.-八年级数学
-
Mike his wedding for a whole month and hopefully everything will be ready tomorrow.A.preparesB.is pr
-
When my sister phoned me, I could not hear clearly what she was _____.A.speakingB.talkingC.sayingD.
-
---It’s many years since I saw you last time. I _________ you at all. ---I wouldn’t have, either, if
-
The past two years ________ a sharp rise in oil price, which adds to the burden of auto transportati
-
When we reached the stadium in a rush, the newly-elected major ____ his speech and the performance _
-
It’s nice to see you again. What _____ since we last met?A.have you doneB.had you doneC.have you bee
题目简介
(6分)计算:-八年级数学
题目详情
答案
解:原式=
=
=0
点评:根式的运算一定要注意将结果化为最简。