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  3. During the past few years, the popularization of the Internet, by lowering the cost of global communication to moderate levels,

During the past few years, the popularization of the Internet, by lowering the cost of global communication to moderate levels,

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问题    During the past few years, the popularization of the Internet, by lowering the cost of global communication to moderate levels, is leading to a near-perfect market for information. It has bred enterprises that grow and change with astonishing speed, creating millionaires and invigorating(振兴) the economy. The Net has brought to even poor libraries a wealth of resources at very low cost. It has enabled individuals to speak in forums small and large, with an ease and fluency that would delight the founders of this nation, if they could see email, the World Wide Web, Usenet, and online chat.
   The tremendous good done by the popularization of the Internet has caused some problems, of course. Chief among these are a weakening of privacy, greater exposure for matters that most people would prefer were absent from society, such as hate speech and child pornography, and an increased risk of one’ s children (or oneself) being confronted by an image or text that better might have been left unseen. The Internet has brought the entire world into the living room, but some people are finding that there are certain parts of the world they would prefer not to have anywhere in their home. An example that has become an everyday displeasure for many is junk email, also called "spam". On a bad day, up to 30% of the email processed by major Internet service providers is spam, much of it promoting sex sites and get-rich-quick schemes. Many people have had to abandon their email accounts, as they become filled with trash. Left unchecked, spam could spoil the great public good of the Internet.
The popularization of the Internet may stimulate the prosperity of the economy in that______.
选项 A、it provides information at high speed and low cost
B、it creates many chances for enterprises
C、it helps to encourage technical innovations
D、enterprises are growing quickly
答案A
解析 根据第一段前两句“…by lowering the cost of global communication to moderate levels，is leading to a near-perfect market for information…”可知，互联网的普及迎来了低成本、高速度的信息时代，为经济发展注入新的活力，即刺激了经济的繁荣增长。B、D两项是结果而非原因。C项文中未提及。故选A。
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