[单选题]某自行车租车点的收费标准是每车次不超过两小时免费，超过两小时的部分每小时收费2元(不足l小时的部分按l小时计算)。有甲、乙两人各自来该租车点租一车。设甲、乙不超 过两小时还车的概率分别为 1/4、1/2 ：两小时以上且不超过三小时还车的概率分别为 1/2/1/4 ：两 人租车时间都不会超过四小时。则两人所付租车费用之和小于6元的概率为( )。
[多选题]2012年，全国公路水路交通固定资产投资l4512亿元，占全社会固定资产投资的3．9％。分地区看，西部地区交通固定资产投资5400亿元，所占比重为37．2％，比上年提高1．2个百分点；东、中部地区交通固定资产投资分别为5479亿元、3633亿元，所占比重分别为37．8％和25．O％。 2012年，公路建设投资l2714亿元，其中，高速公路建设投资7238亿元，下降2．5％；国省道改造投资2575亿元，增长5．9％；农村公路建设投资2145亿元，增长6．7％，新改建农村公路19．5万公里。 2011年，东、中部地区完成交通固定资产投资总额占全国的比重为( )。
[单选题]①自以为聪明是一种愚蠢，而自以为愚蠢却可以是一种智慧 ②然而，真正的大智若愚不是借以达到目的的方法、手段，更不是虚伪的掩饰，而是一种真诚的人生态度——把自己摆在愚者的位置上，把他人、大众看作智者 ③老子说过“大智若愚”，许多人把它理解为一种方法，甚至是一种伪装④每个人都希望自己成为智者，没有人愿意被冠以“愚者”之名 ⑤在人的思想行为领域，愚和智看似对立，实则有相互转化的关系 ⑥但是从辩证法“两极相通”的角度来看，真正的智慧，其中天然地蕴含着某种意义上的“愚” 将以上6个句子重新排列，语序正确的是( )。
[单选题]根据以下内容，回答222-224题。 Rase Chemical Corporation is proud to submit its entry to the annual Chemistry Innovation in Motion contest to be held in the Royal Park Hotel, Vancouver, Canada, September 6－10. Our entry introduces what we believe is an extraordinary product. The product is a new type of insulation material providing benefits that traditional housing in-sulation products do not offer. Thanks to its unique microstructure, the new material can keep houses up to 50 percent warmer in the cold winter months. This means that using our insulation will result in substantial reductions in consumer heating hills. In addition, our new insulation mate-rial is made without the harmful chemicals often found in other insulating products, making it safer to use and easier to dispose of. Moreover, the insulation functions well in all types of climates. Consumers living in humid or dry areas will equally benefit from our new insulation. We invite all scientists and observers to visit our information booth at the Chemistry Innova-tion in Motion contest and to meet Bernard Cho, CEO of Rase Chemical Corporation, who will be giving a presentation on the product at 9:00 A,M. on September 9. What can be inferred about the new insulation?
[多选题]根据下列内容，回答211-215题。 What should you think about in trying to find your career? You are probably better at some school subjects than others. These may show strengths that you can use in your work. A boy who is good at mathematics can use that in an engineering career. A girl who spells well and likes English may be good at office work. So it is important to know the subjects you do well in at school. On the other hand, you may not have any specially strong or weak subjects but your records show a gen- eral satisfactory standard. Although not all subjects can be used directly in a job, they may have indirect value. A knowledge of history is not required for most jobs but if history is one of your good subjects you will have learned to remember facts and details. This is an ability that can be useful in many jobs. Your school may have taught you skills, such as typing or technical drawing, which you canuse in your work. You may be good at metal work or cookery and look for a job where you can im-prove these skills. If you have had a part-time job on Saturdays or in the summer, think what you gained from it.If nothing else, you may have learned how to get to work on time, to follow instructions and to geton with older workers. You may have learned to give correct change in a shop, for example. Just asimportant, you may become interested in a particular industry or career you see from the inside ina part-time job. Facing your weak points is also part of knowing yourself. You may be all thumbswhen you handle tools; perhaps you are a poor speller or cannot add up a column of figures. It isbitter to face any weaknesses than to pretend they do not exist. Your school record, for instance,may not be too good, yet it is an important part of your background. You should not be apologeticabout it but instead recognize that you will have a chance of a fresh start at work. Which of the following best sums up the first paragraph?___________