2. 外语
  3. The postal zoning system in the United States began in 1943 with the introduction of the one or two digit zone number. These num

The postal zoning system in the United States began in 1943 with the introduction of the one or two digit zone number. These num

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问题     The postal zoning system in the United States began in 1943 with the introduction of the one or two digit zone number. These numbers identified a delivery station of a metropolitan post office. On July 1, 1963,Mr Zip introduced the Zone Improvement Plan. This was a five digit national coding system used to identify each postal delivery section. The first digit identifies one of ten geographical areas, with the second digit denoting a state, part of a heavily populated state, or two or three less populated states. The third digit designates a major metropolitan postal facility or sectional center, with the fourth and fifth digits picking up the original zone number.
    The Federal German Post Office became the first to use the current postal code system to speed delivery. The function of a code system is to help in address scanning and the automated processing of mail, and to speed up mail sorting. Approximately 97 percent of all mail delivered in the United States uses the Zip Code, m 1974, me United States Postal Service issued a postage stamp to publicize me numerical system.
The Zip Code system is used so as to______.
选项 A、read addresses quickly
B、handle mail by machines
C、sort out mail very fast
D、all of the above
答案D
解析 由文章第二段第一、二句可知，Zip Code系统可以快速扫描地址，快速分类并且传递，即包含了A、B、C三方面的内容。故正确的答案为D。
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