图（一）为呼吸系统的组成示意图．图（二）为肺泡与毛细血管之间的气体交换示意图，请据图回答下列问题：

（1）呼吸系统中气体交换的主要场所是____ ____．呼吸道不仅是气体的通道，而且还能使到达肺部的气体温暖、湿润和____ 

（2）图（二）所示的肺泡壁和毛细血管壁都是由____ 层扁平上皮细胞构成，这有利于进行____ 

（3）图（二）中a代表的物质是____ ，血液从毛细血管的4端流到5端后，其成分变化是____ 气体含量增加．

（4）图（二）所示的外界气体按照c方向进入肺泡时，图（一）中3肺应处____ 状态．

请阅读下列短文，从每题所给的四个选项(A、B、C和D)中，选出最佳选项。

E

    The traditional distinction between products that satisfy needs and those satisfy wants is no longer  adequate to describe classes of products. In today's prosperous societies, the distinction has become unclear because so many wants have been turned into needs. A writer, for instance，can work with paper and pencils. These are legal needs for the task. But the work can be done more quickly and efficiently with a word processor. Thus a computer is soon viewed as a need rather than a want.

   In the field of marketing, consumer goods are classed according to the way in which they are purchased. The two main classes are convenience goods and shopping goods. Two lesser types are specialty goods and unsought(主动提供的)goods. It must be emphasized that all of these types are based on the way shoppers think about products. not on the nature of the products themselves. What is regarded as a convenience item in France (wine, for example) should be a specialty goods in the United States.

    People do not spend a great deal of time shopping for such convenience items as groceries, newspapers, toothpaste, aspirin, and candy. The buying of convenience goods may be done routinely, as some families buy groceries once a week. Such regularly purchased items are called staples. Sometimes convenience products are bought without enough thinking; someone has a sudden desire for an ice cream sundae on a hot day. Or they may be purchased as emergency items.

    Shopping goods are items for which customers search. They compare prices. quality, and styles, and may visit a number of stores before making a decision. Buying an automobile is often done this way.

    Shopping goods fail into two classes: those that are recognized as basically the same and those that are regarded as different. Items that are looked upon as basically the same include such things as home appliances, television sets, and automobiles. Having decided on the model desired, the customer is primarily interested in getting the item at the most favorable price. Items regarded as essentially different include clothing, furniture, and dishes. Quality, style and fashion will either take precedence(优先)over price, or they win not matter at all.

买一套办公桌椅共用去750元，其中椅子的价钱是这套桌椅价钱的 $\frac{3}{10}$ ．桌子的价钱是多少元？

阅读下面材料，在空白处填入适当的内容（1个单词）或括号内单词的正确形式。

    Once upon a time, a blind man was sitting at the roadside with a hat by his feet. There was a sign beside him, ____ (say), “I am blind. Please help me.” ____ good many passers-by walked by him, but few of them helped him.

    A creative young man named Tom was going to his office. While walking by the blind man, he stopped ____(see) that the man only had a few coins in his hat. He bent down and put a few of his own coins in the hat. Without asking for the blind man's ____(permit), he took the sign, turned it around and wrote a new message. Then he put the sign by the feet of the blind man, and left.

    ____ (late) that afternoon, when Tom returned to the blind man, he saw the hat ____(fill) with bills and coins. The blind man recognized his footsteps and asked if ____ was he who had changed his sign. He also wanted to know ____ the man had done to the sign.

    Then the young man told the blind man that he ____ (write) something like this on the sign, “It is spring now, but I can't see it.” ____ （hear）what the young man said, the blind man expressed his gratitude to him and went home happily.

    近几年，以汉服圈为代表的古装文化实践呈现出了明显的上升态势。在文化传播领域，例如方文山在2013年创办“西塘汉服文化周”，建构了一个以汉服文化为中心的文化场域。在产业资本领域，与汉服相关的产业成为资本青睐的对象。现在，身穿汉服的身影已经时常出现在大学校园、商业广场和地铁公交等公共场域，进一步融入了日常生活之中。

    不过，有的汉服爱好者却表达了不同的焦虑，“现在的汉服圈都很浮躁，很多人已经退圈，因为已经背离了初衷”。有人曾对汉服文化内部的构成做过普及：一是汉服爱好者，即已接触汉服，对汉服有一定了解，认同汉服复兴的主要观点与理念；二是汉服生活者，即将汉服生活化，在日常生活中践行传统中国人的生活方式；三是汉服复兴者，主要进行理论研究或服饰考据，或负责引导社团、举办活动，较大范围地复兴推广汉服。显然，一种内部的阶层被呈现了出来。在公共场合身穿自制汉服的第一人王乐天等，同汉服生活者一起，他们构成了金字塔结构的塔尖和塔身。而汉服爱好者则是金字塔形结构的基座。汉服复兴者规定汉服文化的边界，而汉服生活者则以一种与世俗生活决断的决心进行实践。例外的是汉服爱好者阶层，他们的参与程度显然要低，远没有生活者“壮士断腕”式的决心。因而，在汉服文化越来越被关注的当下，汉服圈内部的焦虑情绪，也许可以解释为汉服爱好者同另两个阶层的脱节。而这种愈发不稳定的结构，则正是汉服文化在持续冲顶过程中的隐忧和未来可能遇到的发展壁垒。

    汉服爱好者介入汉服圈的动力，往往来自动漫文化的影响。如果要进一步厘清这一群体的文化需求，则必须首先将他们从汉服圈中剥离出来，去放置在青年亚文化实践的脉络中进行观察。汉服爱好者首先关注的是亚文化实践的满足，形成的对主流文化的仪式性抵抗策略和沟通尝试。

    然而，汉服文化复兴者和生活者强调汉服文化的正统性，这就造成汉服圈内出现了爱好者同“考据派”的二元对立。随着汉服文化热度升高，传统影楼写真为代表的行业也开始介入古装拍摄。此时，为了维护亚文化内部的纯洁性，汉服爱好者又斥其为“影楼装”，拒绝承认同汉服文化的关系。这种内部分裂导致的不稳定结构将制约其进一步发展。

    如何尽快理解汉服文化金字塔基座的庞大人群的构成成分和文化诉求、保护他们的参与热情，是夯实传统文化复兴人群基础需要特别注意的一个方面。

（摘编自赵运涛《画里有话——中国传统文化中的吉祥图案》）