11。21详细版机经

Maths

1 DS: an positive integer N=P+M+S PMS are positive consecutive intergers P<M<S; N=xyz where xyz are positive consecutive intergers where X<Y<Z, what is the remainder when N is divided by 5

(1)when P is divided by 5, the remainder is 1

(2)when X divided by 5, the remainder is 1

2. two kinds of books: hardcover and papercover ones, if the range of the prices of both kinds of books is 50 and the range of the prices of paperbooks is10, what is the range of the prices of the hardcover books:

(1)the lowest price of hardcover books is 2 less than the highest price of paperbook

(2)the highest price of hardcover books is 40 more than the highest price of papercover books

3 if 1<s<t, s and t are positive intergers and are all factors of n, which of the following must be the factor of n^(st)

1s^t

2(st)^2

3 s+t

Verbal

rc:

1.       skimming price and penetration price strategies to launch new products

the author prefer the skimming price given the short perios during which the new product can have merit.

考了一道主旨题，还有一道问作者认为什么情况下适合用skimming price  定位在第二段

2         two researchers find correlation among stocks in the same region, the author think the reason cannot be….because the study has….(有题，问作者认为这个实验怎么样，我选的rule out a possible alternatives)

they compare the stock prices of a company before and after it moved to a new region and confirmed the correlation

(一道题，问如果实验者的实验结果是对的，那么当一个公司搬到新地方时，会出现哪种情况)

They gave explanation: investers, especially individual investors, tend to invest in their own region and did not consider the earnings of the company(题
        问个人投资者倾向于怎么样；还有一道加强题，问哪项可以加强实验者的解释)

They improve the theory of portfolio diversification.

3         dolphins navigate against noise in the background.

Dolphins use whistle and clicking emission.（主旨题，选一个动物如何解决自然环境给它造成的麻烦；第二段段末句有题，直接事实题，同意变换就行。我选的有anticipating 那个选项）

Cr:

1 归纳题：一个图书馆管理员说不能仅因为一本书中的一句话儿童不宜就否定整本书，有些话放在上下文中可以提供有价值的信息

2归纳题式的填空：消防队员要有好的体力，但消防部门有一种职位不需要好的体力而且有多年消防经验的人合适

问以上论述可以作为对下列哪项陈述的反对，我选的是55岁的消防队员必须退休

3评价题：就是植物可以在含金属很高的土壤里生长的题

4         填空题：一个城市的居民要么用南桥要么用北桥，南桥要修复，市长准备在修复期间免南桥过桥费，为了不大幅度减少政府的过桥费收入，市长提议将北桥的过桥费增加，
        市长说这个提议会达到效果因为——（我选的含双重否定的那项）

Awa

Aa: （new）一个软件公司发现他们给专业人员提供的会计软件比竞争者卖的好，但是给非专业人员设计的软件卖得没有其他同类产品好，他们做了一项调查，发现专业人员都说他们的软件有其他竞争者没有的特点。所以为了增加对非专业人员的销售，提议将这个特点加到给家庭用户的软件里/（应该是这样吧，不过我记不大清）

AI：只有不拘泥于传统思想和方式的人才能成功

不好意思

不好意思

Maths

1 DS: an positive integer N=P+M+S PMS are positive consecutive intergers P<M<S; N=xyz where xyz are positive consecutive intergers where X<Y<Z, what is the remainder when N is divided by 5

(1)when P is divided by 5, the remainder is 1

(2)when X divided by 5, the remainder is 1

2. two kinds of books: hardcover and papercover ones, if the range of the prices of both kinds of books is 50 and the range of the prices of paperbooks is10, what is the range of the prices of the hardcover books:

(1)the lowest price of hardcover books is 2 less than the highest price of paperbook

(2)the highest price of hardcover books is 40 more than the highest price of papercover books

3 if 1<s<t, s and t are positive intergers and are all factors of n, which of the following must be the factor of n^(st)

1s^t

2(st)^2

3 s+t

 请问答案是什么呢?

谢谢

 请问答案是什么呢?

谢谢

嘿嘿，变

我不敢确定

所以不好说

天，数学！好难的题，吭哧了半天，把偶吃奶的劲都使出来了，参考答案如下：

第一题：D  第二题：A  第三题：1和2

请牛牛指点：）

第1题： (1)P 个位数为1时M、S个位为2、3，和(N)的个位数为6被5除，余1。P 个位数为6时M、S个位为7、8，和(N)的个位数为1被5除，余1。所以(1)是成立的。再看(2)X个位为1时，Y、Z个位数分别为2、3，个位乘积为6，即N的个位是6，被5除余1；X个位为6时，Y、Z个位数分别为7、8，乘积的个位为6，即N的个位是6，被5除余1。所以(2)也是成立的。故选D。

第二题：由条件A：Ph-Pl=10。对于(1)h-Hl=2,则Pl是最小值且Hl－Pl＝8,由条件B总值域是50可得Hh－Pl＝50，于是Hh-Hl=42。再看(2):Hh-Ph=40且由条件A得：Hh-Pl=50，但没有获得Hl的信息，所以得不到H的域值。故选A

第3题：n=(s*t*C)则n^st＝（s*t*C）^st＝（s^t)^s*（t^st）*C^st＝（s*t）^st*C^st,对于1，是因子，对于2，因为st都是大于1的整数所以肯定大于2，也是因子，对于3确不能确定了。以s＝2,t=3,C=7验算一下，n^st＝（2*3*7）^5 ＝42^5因子中没有5。