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2023-08-17 01:15:28【生活常识】人已围观
简介一、怎样快速记忆3000道选择题答案?如果仅仅是按照顺序把abcd这些字母记住的话,出题者把题目换了顺序,那你便满盘皆输所以在记忆的时候1.看着题目,对着答案,如果有解析的话,把解析
一、怎样快速记忆3000道选择题答案?如果仅仅是按照顺序把abcd这些字母记住的话,出题者把题目换了顺序,那你便满盘皆输
所以在记忆的时候1.看着题目,对着答案,如果有解析的话,把解析看一遍,过完一遍的话,2.如果还有时间就自己写一遍,3.然后再对照答案,这样的话,相当于过了三遍,记住应该是没问题了
二、三道应用题带答案?五年级同学植树,13或14人一组都正好分完,五年级参加植树的同学至少有多少人?
13X14=192人
答:五年级参加植树的人至少有192人.
两个工程队要共同挖通一条长119米的隧道,两队从两头分别施工.甲队每天挖4米,乙队每天挖3米,经过多少天能把隧道挖通?
解:设X天后挖通隧道
3X+4X=119
7X=119
X=17
答:经过17天挖通隧道.
三、化简求值的题五道,带答案?1、已知A,B是方程x^2+2x-5=0的两个实数根,
求(A^2+2AB+2A)(B^2+2AB+2B)的值.
由A,B是方程x^2+2x-5=0的两个实数根得:
AB=-5,A+B=-2
A^2+2AB+2A)(B^2+2AB+2B)
=AB(A+2B+2)(B+2A+2)
=-5(-2+B+2)(-2+A+2)
=-5AB
=25
2、1/2(x+y+z)方+1/2(x-y-z)(x-y+z)-z(x+y),其中x-y=6,xy=21.要详细步骤
化简得:
1/2(x+y+z)方+1/2(x-y-z)(x-y+z)-z(x+y)=
1/2[(x+y)方+2z(x+y)+z方]+1/2[(x-y)方-z方]-z(x+y)=
1/2(x+y)方+1/2(x-y)方=x方+y方
由x-y=6,xy=21得,x方+y方=(x-y)方+2xy=78
3、a^2-ab+2b^2=3 求2ab-2a^2-4b^2-7的值
2ab-2a^2-4b^2-7
=2(ab-a^2-2b^2)-7
=-2(a^2-ab+2b^2)-7
=(-2)*3-7
=-6-7=-13
4、若A=2x^2+3xy-2x-3,B=-x^2+xy+2,且3A+6B的值与x无关,求y的值
3A+6B=6x^2+9xy-6x-9-6x^2+6xy+12
=15xy-6x+3
=x(15y-6)+3
5、9x+6x^2 -3(x-2/3x^2).其中x=-2
9x+6x² -3(x-2/3x²)
=9x+6x²-3x+2x²
=8x²+6x
=8×(-2)²+6×(-2)
=32-12
=20
四、20道烧脑智力题带答案?1. 森林里发生火灾,在三天三夜抢救后灭了火,却发现了潜水员的尸体,原来为了全面有效的灭火,便抽取了海水,结果把潜水员抽了上来!
2. 小白长得很像他的哥哥,打一句成语。答案:真相大白
3. 问:为什么梨子是温度最高的水果?答 :梨子(离子 )烫
4. 问 : 世界上最富有同情心的动漫人物是谁。答: 机器猫。为什么: 因为他总是向人伸出 圆手 !
5. 问 : 世界上最最黑暗的动漫人物是谁?答: 还是机器猫。为什么: 因为他伸手不见五指
五、中考数学最后两道选择题答案有什么规律?中考数学最后两人道选择题答案无规律。如果有规律的话,老师学生一定会寻找规律,并会运用规律,这样就失去了考试选拔性的作用。
但选择题的出题是有规律可寻的,一般是按照先易后难的规律出题的,这样就避免了学生一做题就一头雾水情况的出现,影响学生的考试心态。
六、10道古代数学趣题带答案?1、百鸡问题 今有鸡翁一,值钱五:鸡母一,值钱三:鸡雏三,值钱一。
今百钱买鸡百只。问鸡翁,鸡母。鸡雏各几何? 2、韩信点兵 韩信练兵,每三人一列,余一人,每五人一列,余二人。每七人一列,余四人,十三人一列,余六人。问多少士兵? 3、李白买酒 李白街上走。提壶去买酒,遇店加一倍,见花喝一斗,三遇店和花,喝光壶中酒,试问酒壶中,原有多少酒?
七、混合脱式计算分数题20道带答案?1. 3/7 × 49/9 - 4/3
2. 8/9 × 15/36 + 1/27
3. 12× 5/6 – 2/9 ×3
4. 8× 5/4 + 1/4
5. 6÷ 3/8 – 3/8 ÷6
6. 4/7 × 5/9 + 3/7 × 5/9
7. 5/2 -( 3/2 + 4/5 )
8. 7/8 + ( 1/8 + 1/9 )
9. 9 × 5/6 + 5/6
10. 3/4 × 8/9 - 1/3
11. 7 × 5/49 + 3/14
12. 6 ×( 1/2 + 2/3 )
13. 8 × 4/5 + 8 × 11/5
14. 31 × 5/6 – 5/6
15. 9/7 - ( 2/7 – 10/21 )
八、40道初一上册人教版英语选择题,要含答案?40道初一上册人教版英语选择题:
1 What do you think _____solve the problem
A.you can do B.can you do C.you can do to D.can you do to
2 In the past he often made his sister___,but now he is often made __by his sister.
A.to cry; to cry B.cry; cry C.to cry; cry D.cry; to cry
3 The teacher told us that the sun ____in the east.
A.rises B.rose C.raises D.raised
4 He lives in a village _____there are a lot of trees.
A.there B.where C.that D.which
5 He ________ Alice for ten years.
A.married to B.has married to C.has married D.has been married to
6 We need fifteen more people _____our team to do the job.
A.but B.except C.as well D.besides
7 They won`t allow us ________ at this beach.
A.swimming B.to swim C.swam D.swim 8 Is this factory ______you visited last week?
A.that B.where C.the one D.in which
9 The reason ___he was absent from the meeting was ___his car broke down on the way.A.that; because B.why; that C.that; that D.for; that
10 Is the river_____ through that town very large?
A.which flows B.flows C.that flowing D.whose flows
11 The teacher told me that the students I wanted to see were seen___ football on the playground just now.
A.playing B.to be playing C.play D.to play
12 The red rose is the only one _____I really like.
A.which B.who C.that D.whom
13 All the apples _____ fell down were eaten by the pigs.
A.those B.which C.what D.that
14 Don`t forget the day ______you were received into the Youth League.
A.when B.that C.at which D.where
15 I prefer______ at home to _____outside.
A.staying,playing B.to stay,play C.staying,play D.to stay,playing
16 The box is _____what I saw in the shop.
A.same as B.the same like C.the same that D.the same as
17 The pen ______she writes letters is broken.
A.which B.that C.with which D.by which
18 Would you like to ______us in our discussion.
A.take part in B.join C.taking part in D.joining
19 I`m sure the red team will ______the game .
A.win B.beat C.defeat D.succeed
20 Ahead of me I saw a woman ____I thought was my aunt.
A.who B.whom C.of whom D.whose
21 _____your help,everything in the room is in good order now.
A.Since B.Because C.thanks for D.Thanks to
22 He is known to the world and has a lot of friends_______
A.in and out of abroad B.at home and abroad C.at home and at abroad D.in home and out of abroad
23 ---Are you going there with them ----If you go,__________.
A.I also go B.so do I C.so I will D.so will I 24 -----The flower is beautiful.---____________ A.So is it B.So it is C.It is so D.So it is
25 The number of people invited ____fifty,but a number of them _____absent
.A.were; was B.was was C.was; were D.were; were
26 We haven`t had any success _______
A.before long B.so long C.by far D.so far
27 Travellers ____our country enjoy the beautiful sights in Beijing,Hangzhou and many other places of interest.
A.for B.to C.till D.by
28 If a man ______succeed,he must work as hard as he can.
A.will B.should C.is going to D.is to
29 ---I am sorry I didn`t do a good job.---Never mind.___ you have tried your best.
A.Above all B.In all C.At all D.After all
30 The best way to make sure that you can keep fit is to ____healthy eating habits.A.find B.create C.develop D.prepare
31 We have spent _____money on English books .
A.a great deal of B.a good many C.a plenty of D.a number of
32 _______met,it won`t be easily forgotten.
A If only B.When if C.Once D.Once you were
33 The differences_____ these two pictures _____ colour are easy to see.
A.in,of B.from,of C.between ,in D.of ,in
34 You should put_____ “s” at the end of this word.
A.a B./ C.an D.the
35---What`s ______population of China ---China has____ population of 1.2 billion.
A.a; the B.the; a C./;/ D.the; the
36 It`s _______here.We can`t work long hours here.
A.very much cold B.much cold C.much too cold D.too much cold
37 _______terrible weather we`ve been having these days!
A.How a B.What a C.How D.What
38 ----Have you decided when_____?-----Yes,tomorrow morning.
A.will you leave B.to be leaving C.are you leaving D.to leave
39 The song ____My heart will go on is liked by the young people.
A.call B.calling C.called D.to call
40 Train services are now back to ______after three days of typhoon.
A.usual B.common C.ordinary D.normal
1-5 CDABD
6-10 DBCBA
11-15 ACDAA
16-20 DCBAA
21-25 DBDBC
26-30 DBDDC
31-35 ACCCB
36-40 CDDCD
x
九、写出关于《鲁滨孙漂流记》的五道选择题,五道判断题,三道连线题和答案?1、无人居住的 荒岛 2、简陋的 帐篷 3、忧郁而寂寞的 生活 4、可怕的 海岛 5、小小的 木栅栏 6、不幸的 处境 你自己打乱顺序。
1、《鲁滨孙漂流记》中第一件事写( 1 )第二件事写( 2)第三件事写( 3 )第四件事写( 4 )第五件事写(5 )。
1遇险上岛 2 建房定居3养牧种植4救“星期五”5回到英国 你自己打乱顺序。
1、鲁滨孙不喜欢航海。
错 2、鲁滨孙在岛上很开心。
对 3、鲁滨孙在船上带回了一只狗和一只猫。
错 4、鲁滨孙一直靠在船上带回的东西生活。
错 5、鲁滨孙最终回到英国。
对 你的问题对于我来说真是太难了!!!!!
十、1000道异分母分数加减法题带答案?异分母分数可以用香交叉相乘的绳方法来计算,1000道的,不管是多少到一分母分数相加减的方法来计算,可以用1×2×2×3×4×5×6×7×8×9的同事来计算
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