单选题What the author tries to suggest may best be interpreted as ______.

单选题WhenwasTwainborn?A.1865.B.1825.C.1835.D.1845.

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单选题Questions 17～20 are based on a radio interview about divorce. You now have 20 seconds to read Questions 17～20.

单选题 Although interior design has existed since the beginning of architecture, its development {{U}} {{U}} 1 {{/U}} {{/U}}a specialized field is really quite recent. Interior designers have become {{U}} {{U}} 2 {{/U}} {{/U}}partly because of the many functions that might be {{U}} {{U}} 3 {{/U}} {{/U}}in a single large building. There might be stores, theatres, restaurants, and other {{U}} {{U}} 4 {{/U}} {{/U}}on the main floor or lower floors of building, while the upper floors might have hotel rooms, apartments, or business offices for many {{U}} {{U}} 5 {{/U}} {{/U}}kinds of companies. The importance of interior design becomes {{U}} {{U}} 6 {{/U}} {{/U}}when we realize how much time we spend in places surrounded by four walls. Whether we need to be {{U}} {{U}} 7 {{/U}} {{/U}}, we want our surroundings to be as attractive and comfortable as possible. We also expect each place to be appropriate {{U}} {{U}} 8 {{/U}} {{/U}}its use. You would be shocked if the {{U}} {{U}} 9 {{/U}} {{/U}}of your bedroom was suddenly changed to look like that {{U}} {{U}} 10 {{/U}} {{/U}}a restaurant. And you {{U}} {{U}} 11 {{/U}} {{/U}}feel right in a business office that looked like a school. It soon becomes clear that the interior designer' s most important basic {{U}} {{U}} 12 {{/U}} {{/U}}is the function of the particular space. For example, a theatre with poor sight lines, poor sound-shaping qualities, and too few {{U}} {{U}} 13 {{/U}} {{/U}}and exits will not work for its {{U}} {{U}} 14 {{/U}} {{/U}}, {{U}} {{U}} 15 {{/U}} {{/U}}how {{U}} {{U}} 16 {{/U}} {{/U}}it might be decorated. {{U}} {{U}} 17 {{/U}} {{/U}}, for any kind of space, the designer needs to make various kinds of decisions. He or she must {{U}} {{U}} 18 {{/U}} {{/U}}decoration of everything from the shape, textures, lighting, and {{U}} {{U}} 19 {{/U}} {{/U}}to floor. {{U}} {{U}} 20 {{/U}} {{/U}}addition, the designer must usually select furniture or design built-in furniture, according to the functions that need to be served.

单选题[此试题无题干]

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单选题 Questions 17-20 are based on the following monologue. You now have 20 seconds to read Questions 17-20.

单选题From the last sentence of the first paragraph we learn that ______.