已知{an}为等差数列,{bn}为各项均是正数的等比数列,且a1=b1=1,a2

题型:解答题

问题:

已知{an}为等差数列,{bn}为各项均是正数的等比数列,且a1=b1=1,a2+a4=b3,b2b4=a3

求:(Ⅰ)数列{an}、{bn}的通项公式an、bn

(Ⅱ)数列{8anb2n}的前n项的和Sn

考点:等差数列的通项公式等比数列的通项公式数列求和的其他方法(倒序相加,错位相减,裂项相加等)
题型:解答题

期交保险费形式的投资连结保险的基本保险费不得高于保险金额(),并不得()。

A.除以20、低于人民币6000元

B.乘以20、低于人民币6000元

C.除以20、高于人民币6000元

D.乘以20、高于人民币6000元

题型:解答题

C

When something goes wrong, it can be very satisfying to say," Well, it’s so-and-so’s fault. "or "I know I’m late, but it’s not my fault ; the car broke down. "It is probably not your fault, but once you form the habit of blaming somebody or something else for a bad situation, you are a loser. You have no power and could do nothing that helps change the situation. However, you can have great power over what happens to you if you stop focusing on whom to blame and start focusing on how to remedy the situation. This is the winner’s key to success.

Winners are great at overcoming problems. For example, if you were late because your car broke down, maybe you need to have your car examined more regularly. Or, you might start to carry along with you the useful phone numbers, so you could call for help when in need. For another ex-ample, if your colleague causes you problems on the job for lack of responsibility or ability, find ways of dealing with his irresponsibility or inability rather than simply blame the person. Ask to work with a different person, or don’t rely on the person. You should accept that the person. Ask to work with a different person, or don’t rely on this person. You should accept that the person is not reliable and find creative ways to work successfully regardless of how your colleague fails to do his job well.

This is what being a winner is all about—creatively using your skills and talents so that you are successful no matter what happens. Winners don’t have fewer problems in their lives ; they have just as many difficult situations to face as anybody else. They are just better at seeing those problems as challenges and opportunities to develop their own talents. So, stop focusing on "whose fault it is". Once you are confident about your power over bad situations, problems are just stepping stones for success.

When your colleague brings about a problem, you should()

A. find a better way to handle the problem

B. blame him for his lack of responsibility

C. tell him to find the cause of the problem

D. ask a more able colleague for help

题型:解答题

在某合同纠纷诉讼中,被告的利害关系人提出该被告患有精神病,要求宣告被告无民事行为能力,法院在依特别程序立案审理之前下列处理方式正确的是:

A.中止原诉讼

B.终结原诉讼

C.暂缓原诉讼

D.延期审理诉讼案件

题型:解答题

检验行政决策是否正确的根据是( )。

A.决策制定是否民主化

B.决策内容是否符合实际

C.抉择方案是否优化

D.行政执行效果

题型:解答题

在Windows桌面上,不能启用“我的电脑”的操作是______。

A.单击“我的电脑”图标
B.双击“我的电脑”图标
C.用鼠标右键单击“我的电脑”图标,随后在其弹出的菜单中单击“打开”
D.在“资源管理器”中双击“我的电脑”

更多题库