1.单选题- (共15题)

A. 4,2,1 B. 2,1,4 C. 1,4,2 D. 2,4,1

A. (



C. (


A.3x2-2x+5的项是3x2,2x,5 | B.![]() |
C.多项式-2x2+4xy的次数是3 | D.一个多项式的次数是6,则这个多项式中只有一项的次数是6 |
按照上述规律,第2015个单项式是()
A.2015x2015 | B.4029x2014 | C.4029x2015 | D.4031x2015 |
2.选择题- (共2题)
I was on a plane returning home to Dallas, Texas after completing my duty in Vietnam. There were no hometown parades for us veterans (退役老兵) from that1war and I had been warned about the unfriendliness from our countrymen at that time.2, I was just trying to get home without incident.
I sat, in uniform, in a window seat,3eye contact with my fellow passengers. No one was sitting in the seat next to me, which4my loneliness. A little girl, not more than 10 years old, suddenly5 in the passage. She smiled and, without a word,6handed me a magazine. I accepted her7together with her quiet “welcome home”. I turned to the window and wept. Her small8of caring was the first I had9 in a long time.
I believe in the10between strangers when we reach out to one another.
Today, that young girl 11 has no memory of what happened years ago. I like to think of her as having grown up, continuing to12others and teaching her children to do the same. I know she might have been told to give me the “13” by her parents. It doesn't matter why she gave me the magazine. The 14thing is she did.
From then on, I have followed her15 and tried, in different ways for 16people, to do the same for them. I know that my 17since then are all due to that little girl. Her offer of a magazine to a tired, scared and 18soldier has echoed throughout my 19. I have to believe that my small gestures have the same20 on others.
3.填空题- (共11题)
(1)它是____次__项式,字母a的最高次数是__,字母b的最高次数的项是__;
(2)把多项式按a的降幂排列为__;
(3)把多项式按b的升幂排列为___.

4.解答题- (共12题)
(1)求c的值;
(2)已知当x=-1时,该代数式的值为-1,试求a+b+c的值;
(3)已知当x=3时,该代数式的值为-10,试求当x=-3时该代数式的值.



(1)观察上述式子,请写出这四个式子都具有的两个特征;
(2)请写出一个新的式子,使该式子同时具有你解答(1)中所写出的两个特征.
a2b+ab2,








单项式:{ …};
多项式:{ …};
整式:{ …};
二项式:{ …};
二次三项式:{ …};
三次二项式:{ …}.
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【1】题量占比
单选题:(15道)
选择题:(2道)
填空题:(11道)
解答题:(12道)
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【2】:难度分析
1星难题:0
2星难题:0
3星难题:0
4星难题:0
5星难题:0
6星难题:34
7星难题:0
8星难题:3
9星难题:1