2. 外语
  3. Almost every new innovation goes【C1】______three phases.【C2】______initially【C3】______into the market, the process of【C4】______is

Almost every new innovation goes【C1】______three phases.【C2】______initially【C3】______into the market, the process of【C4】______is

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问题     Almost every new innovation goes【C1】______three phases.【C2】______initially【C3】______into the market, the process of【C4】______is slow. The early models are expensive and hard to use, and perhaps even unsafe. The economic【C5】______is relatively small. The second phase is the explosive one,【C6】______the innovation is rapidly adopted by a large number of people. It gets cheaper and easier to use and becomes something familiar. And then in the third【C7】______,【C8】______of the innovation【C9】______again,【C10】______it permeates out across the economy.
    During the explosive phase, whole new industries spring up to produce the new product or innovation, and to【C11】______it. For example, during the 1920s, there was【C12】______dramatic acceleration in auto production, from 1.9 million in 1920 to 4.5 million in 1929. This【C13】______was accompanied【C14】______all sorts of other essential activities necessary for an auto-based nation: Roads had to be built for the cars to【C15】______; refineries and oil wells, to provide the gasoline; and garages, to repair【C16】______. Historically, the same【C17】______is repeated again and again with innovations. The construction of the electrical system【C18】______an enormous early investment in generation and distribution【C19】______. The introduction of the radio was followed by a buying spree by Americans that quickly brought radios into almost half of all【C20】______by 1930, up from nearly none in 1924.
【C1】
选项 A、over
B、along
C、through
D、under
答案C
解析 习惯用法题go through“经历、忍受或遭受某事物”：She’s gone through a badpatch recently．她最近经历了一段困难时期。go over sth．“仔细检查某事物，察看某事物”：The surveyor went over the house thoroughly and advised us not to buy it．房屋鉴定人彻底察看了房子以后，劝我们不要买。go along(a)进行下一项活动，继续：Youmay have some difficulty at first but you’ll find it easier as you go along．初期可能有些困难，继续做下去就会觉得容易多了。(b)进展，发展：Things are going along nicely．事情进展得很好。go under破产，失败：The firm will go under unless business improves．生意若无起色，公司非垮不可。
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