解答发现:⑴ 当a=3,b=2时,分别求代数式(a+b)2和a2+2ab+b2的

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问题:

解答发现:⑴ 当a=3,b=2时,分别求代数式(a+b)2和a2+2ab+b2的值,并观察这两个代数式的值有什么关系?(3分)

⑵再多找几组你喜欢的数试一试,从中你发现了什么规律?(2分)

⑶利用你所发现的规律计算a=1. 625,b=0. 375时,a2+2ab+b2的值?(3分)

考点:整式的定义整式的加减单项式多项式同类项
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数字签名最常用的实现方法建立在公钥密码体制和安全单向______函数基础之上。

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下列行为中,哪项属于默示的民事法律行为( )

A.租期届满后,承租人继续交付租金,出租人继续收取租金

B.代理期限届满后,委托人没有继续委托,而代理人仍然进行代理行为

C.甲向乙提出书面要约,双方在此之前未有联系。甲在要约中明确提出,若乙不在1个月内提出反对意见,视为同意,1个月后,乙沉默

D.甲向其妻子乙提出离婚,乙沉默,后甲以乙的此行为要求法院判决离婚

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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.

Which of the following is the best title for the passage()

A. A Winner’s Secret

B. A Winner’s Problem

C.A Winner’s Opportunity

D. A Winner’s Achievement

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根据《临时约法》的规定,行使最高审判权的机关是( )。

A.临时中央审判所

B.法郎

C.最高法院

D.大理院

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在固定资产的折旧方法设置中,( )是系统缺省的折旧方法,只能选用,不能删除和修改。

A.不提折旧

B.工作量法

C.年数总和法

D.双倍余额递减法

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