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Be Healthy ! Be Slim ! Be Beautiful! Discover the secret for a healthy, slim, and beautiful you ! Discover how to be healthy, slim and beautiful ! I love this healthy diet program because it helps you lose weight, lose inches , feel healthy and look beau tiful. .com This healthy diet is an 8 week’s program which is unlike other diet regimes(食物疗法). In that it focuses on proper nutrition first and weight loss second. Your body must have proper levels of minerals, vitamin, and protein in order to work well. It provides a simple lifestyle change to give you more energy and improve your health most greatly. It offers control over stomach and continuing hunger with a dense diet allowing 1,700 to 2,000 calories a day. If a person has a weight problem, their body probably is not working at proper levels of basic nutrients. We invite you to follow this program, so you can be the slim person who lives inside you. You too, can love dieting espec ially if you are losing wei ght and losing inches. For more information about our program, please get to our address in the internet: http://www.Shaklee. net/ lifestyle—for—heath/products 小题1:This passage is mainly about . A.how people should keep fit B.a healthy diet program C.why people should keep fit D.ways to lose weight 小题2:The underlined phrase “lose inches” in the passage means . A.become shorter B.become taller C.become fatter D.become thinner 小题3:According to this passage, all of the following are true except that . A.this program makes a change in your lifestyle B.this program can stop you from feeling hungry all the time C.this program allows you 1,700 to 2,000 calories for each meal D.this program tries to tell us what people should do to become slim 小题4:If you click “ http://www.Shaklee. net/ lifestyle—for—heath/products ”you may read A.some other programs B.the content of this program C.some interesting foods D.some products you can buy
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【单选题】强心苷治疗心力衰竭的基础主要是
A.
负性传导
B.
负性频率
C.
降低心肌的耗氧量
D.
正性肌力作用
【简答题】已知函数 f(x)=1+ 2 x ,数列{x n }满足x 1 = 11 7 ,x n+1 =f(x n );若b n = 1 x n -2 + 1 3 . (1)求证数列{b n }是等比数列,并求其通项公式; (2)若c n =3 n -λb n (λ为非零整数,n∈N*),试确定λ的值,使得对任意n∈N*,都有c n+1 >c n 成立.
【简答题】已知等比数列{x n }的各项为不等于1的正数,数列{y n }满足 y n lo g x n a=2(a>0,a≠1) ,设y 3 =18,y 6 =12. (1)求数列{y n }的前多少项和最大,最大值为多少? (2)试判断是否存在自然数M,使当n>M时,x n >1恒成立?若存在,求出相应的M,若不存在,请说明理由; (3)令 a n =lo g x n x n+1 (n>13,n∈N) ...
【简答题】已知等比数列{x n }的各项为不等于1的正数,数列{y n }满足 y n log a x n =2 (a>0,且a≠1),设y 3 =18,y 6 =12. (1)数列{y n }的前多少项和最大,最大值是多少? (2)试判断是否存在自然数M,使得n>M时,x n >1恒成立,若存在,求出最小的自然数M,若不存在,请说明理由.
【判断题】焊条牌号为Z408的铸铁焊条是纯镍铸铁焊条。 ()
A.
正确
B.
错误
【简答题】已知等比数列{ x n }的各项为不等于1的正数,数列{ y n }满足 =2( a >0,且 a ≠1),设 y 3 ='18,' y 6 =12. (1)数列{ y n }的前多少项和最大,最大值为多少? (2)试判断是否存在自然数M,使得当 n >M时, x n >1恒成立,若存在,求出相应的M;若不存在,请说明理由; (3)令 试比较 的大小.
【简答题】焊条牌号为Z408的铸铁焊条是纯镍铸铁焊条 本题为判断题,请判断对与错,谢谢!
【判断题】焊条牌号为Z408的铸铁焊条是纯镍铸铁焊条。
A.
正确
B.
错误
【简答题】已知数列{x n },{y n }满足x 1 =x 2 =1,y 1 =y 2 =2,并且 x n+1 x n =λ x n x n-1 , y n+1 y n ≥λ y n y n-1 (λ为非零参数,n=2,3,4,…). (1)若x 1 ,x 3 ,x 5 成等比数列,求参数λ的值; (2)当λ>0时,证明 x n+1 y n+1 ≤ x n y n (n∈ N * ) ;当λ>1时,证明 ...
【简答题】设数列{x n }满足x n ≠1且(n∈N * ),前n项和为S n .已知点p 1 (x 1 ,S 1 ),P 2 (x 2 ,s 2 ),…P n (x n ,s n )都在直线y=kx+b上(其中常数b,k且k≠1,b≠0),又y n =log 1 2 x n . (1)求证:数列{x n ]是等比数列; (2)若y n =18-3n,求实数k,b的值; (3)如果存在t、s∈N * ,s...
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