题干

一项工程,甲,乙两公司合作,12天可以完成;如果甲,乙两公司单独完成此项工程,乙公司所用时间是甲公司的1.5倍,乙公司每天的施工费比甲公司每天的施工费少1500元.
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同类题1

任务型阅读

    Nothing succeeds like confidence. When you are truly confident, it radiates from you like sunlight, and attracts success to you like a magnet(磁铁)____ And gaining the confidence of others is one of the key ways in which a self-confident person finds success.

    So how can we build a sense of self-confidence and prepare ourselves on the way to success? First, do what you believe to be right, even if others laugh at you for it____If you believe you can, then you really will. The belief keeps you searching for answers, which means that pretty soon you will get them.

    Second, govern your behavior based on what other people think. What's more important, be willing to take risks and go the extra miles to achieve better results, in which case mistakes can not be avoided____  Next, work hard to settle the problems in order to cover up your mistakes before anyone notices. Building self-confidence is readily achievable, as long as you have the focus and determination to carry things through.

    With your determination and improvement, you are getting closer to success. At this stage, wait for others to congratulate you on your accomplishments. “Thanks, I really worked hard on the road to success. I'm pleased you recognize my efforts.____Self-confidence is extremely important in almost every aspect of our lives, and it is no wonder that so many people struggle to find it____ Besides, whether you're working on your own self-confidence or building the confidence of people around you, it's well worth the effort!

A. Believe in yourself and believe that you can do it under any circumstances.

B. Highly self-confidence person can achieve great results in every field he enters.

C. Besides, those who are self-confident can in turn inspire confidence in others.

D. The congratulations from others will promote you to gain further success.

E. Self-confidence really can be learned and built on.

F. Don't hesitate to admit your mistakes, and learn from them.

G. A lack of confidence can lead to a lot of sufferings.

同类题5

阅读下列材料:
材料一 在唐初诸帝时代,中国的温文有礼、文化腾达和威力远被,同西方世界的腐败、混乱和分裂对照得那样地鲜明,以致在文明史上立刻引起一些最有意思的问题。中国由于迅速恢复了秩序和统一而赢得了这个伟大的领先。
                                                                                                                                                             ——韦尔斯《世界史纲》
材料二 清朝在康熙、雍正、乾隆帝时期,经过同外部侵略势力及内部民族分裂势力的一系列重大斗争,建立起一个空前统一和巩固的国家。这就基本奠定了今天中国疆域的规模。  
                                                                                                                                                            ——张传玺主编《中国古代史纲》
材料三 内战首先使美国原来宪政机制中分裂的主权得到了统一。它为美国大工业化的发展,准备了条件。这个是一个先行,如果说,主权得不到统一,领土不能够得到统一,或者劳动力体制得不到统一的话,后面的大工业化还会推迟,或者不会产生这么大的效果。
很多美国历史学者认为,南北战争是美国历史上的一道分水岭。联邦政府从此变得强大起来,美国的农业、工业以及整个国家都发生了重要的转变。                              
                                                                                                                                                           ——《大国崛起 美国》
请回答:
(1)根据材料一,指出唐初中国“文化腾达和威力远被”的原因,并结合所学知识,列举唐初中国“文化腾达”的事例。
(2)根据材料二,概括指出康熙、雍正、乾隆帝对中国历史的贡献是什么?结合所学知识,举出一个清朝同内部民族分裂势力作斗争的例子。
(3)根据材料三,归纳美国内战的作用是什么?结合所学知识,指出美国联邦政府成立于何时?
(4)综上,纵观古今中外历史,你认为对“中华民族伟大复兴”的实现有何借鉴?