题目内容
According to Papousek's conclusion, the pleasure babies get in achieving something is a reflection of______.
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The first moving-picture theater was probably the work of Harry Davis, Pittsburgh's most prosperous showman. In 1904, he rented a storefront, filled the room with chairs, gaily decorated the exterior, and advertised the【C1】______of a "nickelodeon". It was a(n)【C2】______success.
Although Davis was the first one to use the name nickelodeon,【C3】______experiments were taking place in other parts of the country.【C4】______the country, vaudeville(杂耍)managers, traveling exhibitors, and show businessmen【C5】______their jobs to set up their own nickel picture【C6】______. There was a great deal of money【C7】______in the business, but nickelodeon owners had to work hard to【C8】______their product. They could not afford to advertise【C9】______in the papers, but they could and【C10】______design their storefront facades to call attention to their shows--with oversized【C11】______, attraction boards, posters, and as many light bulbs as they had【C12】______for, To draw the attention of【C13】______, they set up phonographs on the street side and hired【C14】______barkers: "It is only five cents. ' See the moving-picture show, see the wonders of Port Said tonight, and a shrieking comedy from real life,【C15】______for five cents. Step in this way and learn to laugh.
From our vantage(有利的)point in the 1990-distraeted【C16】______we are by television, radio, CD players and DVDs, it's difficult to recapture the【C17】______caused by the appearance of these first nickel theaters. For the【C18】______of the city's population, until now shut out of its theaters and commercial amusements, the sudden【C19】______of nickel shows within walking distance must have been【C20】______short of extraordinary.
【C1】
听力原文：W: ok, last night you were supposed to read an article about human bones. Are there any comments about it？
M: well, to begin with, I was surprised to find out there were so much going on in bones. I always assumed they were pretty lifeless.
W: Well, that's an assumption many people make. But the fact is bones are made of dynamic living tissue that requires continuous maintenance and repair.
M: Right. That's one of the things I found so fascinating about the article the way the bones repair themselves.
W: Ok. So can you tell us how the bones repair themselves.
M: Sure. See, there are two groups of different types of specialized cells in the bone that work together to do it. The first group goes to an area of the bone that needs repair. This group of cells produce the chemical that actually breaks down the bone tissue, and leaves a hole in it. After that the second group of specialized cells comes and produce the new tissue that fills in the hole that was made by the first group.
W: Very good. This is a very complex process. In fact, the scientists who study human bones don't completely understand it yet. They are still trying to find out how it all actually works. Specifically, because sometimes after the first group of cells leaves a hole in the bone tissue, for some reason, the second group doesn't completely fill in the hole. And this can cause real problems. It can actually lead to a disease in which the bone becomes weak and is easily broken.
M: ok, I get it. So if the scientists can figure out what makes the specialized cells work, maybe they can find a way to make sure the second group of cells completely fills the hole in the bone tissue every time. That'll prevent the disease from every occurring.
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A．Because they are not news.B．Because they aren't pleasant to read.C．Because most peop
According to the passage, what is Wendy Uhlmann's attitude toward genetic testing？
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