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已知一列数a,b,a+b,a+2b,2a+3b,3a+5b,……,按照这个规律写下去,第9个数是 .
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已知整数对按如下规律排成一列:11122113223114233241则第60个数对是
(7,5)
(5,7)
(2,10)
(10,1)
已知一列数1-23-45-67将这列数排成下列形式第1行1第2行-23第3行-45-6第4行7-89
50
-50
60
-60
.观察下面一列有规律的数并根据此规律写出第5个数和第7个数.____________________
按下列规律排列的一列数对13253749则第n个数对是
将自然数按以下规律排列第一列第二列第三列第四列第五列第一行1451617第二行23615第三行987
现有一列数据它们是4453552这列数据的平均数众数和全距依次是
4.4,2
4,5,3
5,4,4
5,5,1
已知一列数1—23—45—67将这列数排成下列形式第1行1第2行-23第3行-45-6第4行7-89
-4955
4955
-4950
4950
观察下面一列数1-23-45-6根据你发现的规律第2012个数是__________
在一列数中从第三个数开始每一个数都等于它前两个数之积的个位数字则这一列数中的第个数是
1
一列数的规则如下112358132134......求第30位数是多少用递归算法实现
将自然数按以下规律排列第一列第二列第三列第四列第五列第一行1451617第二行23615第三行987
已知整数对按如下规律排成一列11122113223114233241则第2014个数对是
(3,61)
(3,60)
(61,3)
(61,2)
一列依次排列的数-123-456-789中第100个数是
已知整数对按如下规律排成一列11122113223114233241则第60个数对是
已知一列数1—23—45—67将这列数排成下列形式第1行1第2行-23第3行-45-6第4行7-89
设一列数a1a2a3a2016中任意三个相邻数之和都是35已知a3=2xa20=15a99=3-x那
2
5
15
18
现有一列数据它们是4453552这列数据的平均数众数和全距依次是
4,4,2
4,5,3
5,4,4
5,5,1
已知KspθAB2=3.2×10-11KspθAB=4.0×10-8则两者在水中溶解度关系为
S(AB)<S(A2B)
S(AB)>S(A2B)
S(AB)=S(A2B)
不能确定
观察下面一列数−12−34−56−7将这列数排成下列形式记为第行第列的数如=4那么是
按一定规律排列的一列数232425252525若xyz表示这列数中的连续三个数猜想xyz满足的关系式
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短周期主族元素XYZW的原子序数依次增大X是原子半径最小的原子Y原子最外层电子数是其内层电子总数的3倍W原子的核电荷数等于XZ原子核电荷数之和X和Z同主族.下列说法正确的是
下列过程吸收热量的是
请阅读下面图画和文字并按照要求用英语写一篇150词左右的文章. 【写作内容】 1.上面图文信息中的Mati的情况实际上反映了一种社会现象请以约30词阐述这种现象的主要内容 2.你认为人们该以什么样的态度来对待这种社会现象?是将它当做一种社会问题加以干涉还是当做一种正常现象给予理解?请给出理由论证你的观点至少三点 【写作要求】 1.写作过程中不能直接引用原文语句 2.作文中不能出现真实姓名和学校名称 3.不必写标题 【评分标准】 内容完整语言规范语篇连贯词数适当.
下列有关物质用途的说法正确的是
已知反应2CO2+6H2CH2═CH2+4H2O可用于合成烯烃.下列有关该反应的说法错误的是
请阅读下面短文并按照要求用英语写一篇150词左右的文章.TheUniversityofCambridgeconfirmedthatitwouldacceptstudentsbasedonGaokaotestresultsinapostontheUniversity'sofficialWeiboaccountonMarch25.TheGaokaoChina'sextremelydifficultuniversityentranceexamisnowacceptedbyanumberofoverseasuniversitiesincludingtheUniversityofNewHampshirewhichlastyearbecamethefirststateuniversityintheUStoacceptGaokaoscoresfornewadmissionstheUniversityofWesternAustraliaandtheUniversityofBritishColumbiainCanada.PreviouslyChinesestudentswouldhavetotakestandardizedcollegeadmissiontestssuchastheSATandACTusedinUSschools.TheGaokaoisregardedassuitablepreparationforCambridge.TheGaokaoscoresofsuccessfulapplicantswillvaryfromprovincetoprovinceandyeartoyear.Asaguidelinesuccessfulapplicantswillusuallyhavescoresinthetop0.1%ofthosetakingtheGaokaointheirprovince.InadditiontothetotalscoreCambridgeCollegeswillpaycloseattentiontoindividualsubjectscoresandscoresintheSeniorHighSchoolExaminationsXueyeShuipingKaoshipreviouslytheHuikao.TheXueyeShuipingKaoshialonearenotregardedassuitablepreparationforCambridge.【写作内容】1.用约30词写出上文概要2.你对高考被国外著名大学认可的看法并至少从两个方面解释你的观点3.谈谈你对如何提高高考国际认可度的建议不少于2条.【写作要求】1.写作过程中不能直接引用原文语句2.作文中不能出现真实姓名和学校名称3.不必写标题.【评分标准】内容完整语言规范语篇连贯词数适当.
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