二、阅读理解：阅读下面的短文，根据文章内容从A、B、C三个选项中选出一个最佳选项。
High-speed rail is a type of rail transport that operates significantly faster than traditional rail traffic, using an integrated system of specialized rolling stock and dedicated tracks. While there is no single standard that applies worldwide, new lines in excess of 250 km/hr and existing lines in excess of 200 km/hr are widely considered to be high-speed, with some extending the definition to include much lower speeds (e.g. 160 km/hr) in areas for which these speeds still represent significant improvements. The first such system began operations in Japan in 1964 and was widely known as the bullet train. High-speed trains normally operate on standard gauge tracks of continuously welded rail on grade-separated right-of-way that incorporates a large turning radius in its design.
Many countries have developed high-speed rail to connect major cities, including Austria , Belgium, China, France, Germany, Italy, Japan, Poland, Portugal, Russia, South Korea, Sweden, Taiwan, turkey, United Kingdom, United States and Uzbekistan. Only in Europe does HSR cross international borders. China has 16,000 km of HSR, accounting for 60 percent of the world’s total. While high-speed rail is usually designed for passenger travel, some high-speed systems also offer freight service.
High-speed rail is a type of rail transport that operates significantly 1 than traditional rail traffic.
A. faster
B. slower
C. as fast as
2. According to the passage, which of the following is true? 2
A. there is no single standard that applies worldwide.
B. there is a standard that applies worldwide
C. there are two standards that apply worldwide
3.When did the first such system widely known as the bullet train begin operations in Japan ? 3
A. in 1964
B. in 1966
C. in 1946
4. The underlined word “ freight” at the end of the paragraph means 4 .
A. military B. cargo C. health
5. The best title of this passage would be “ 5 ”.
A. Traditional Rail Traffic B. the Bullet Train C. High-speed Rail
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