2. 外语
  3. In 1791, the French nation, in the midst of a revolution, wished to break with the past, especially with those aspects of it whi

In 1791, the French nation, in the midst of a revolution, wished to break with the past, especially with those aspects of it whi

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问题     In 1791, the French nation, in the midst of a revolution, wished to break with the past, especially with those aspects of it which they considered illogical and useless. One of these was the traditional system of weights and measures then in use. Not only was the system overly complicate, but it also varied (47)______ from place to place.
    In constructing the new system, the French began by setting up a Unit of distance (48)______ to one forty-millionth part of the earth’s circumference. Unfortunately, later measurements showed that the unit designated was not exactly that fraction, but they (49)______ to use it. (Today the unit is defined simply (50)______ the distance between two marks on a platinum-iridium bar kept in a suburb of (51)______). The unit is the meter, and the system of measurements (52)______ on this until is the metric system, the system (53)______ used by scientists over the world.
    The metric system is built in units of (54)______, Greek prefixed showing multiples and Latin prefixed showing fractions. The Greeks had no word for a number larger than ten thousand and the Romans had none (55)______ a number larger than one thousand, but the system was extended by using less (56)______ words; for instance, megameter (one million meters) is derived from a Greek word that means simply "large".

              Word Bank:
A. widely                  I. specific
B. equal                   J. based
C. continued               K. divided
D. today                   L. calculated
E. ten                     M. to
F. as                      N. London
G. for                     O. opposed
H. Paris

选项
答案B
解析 下文提到所创建的长度单位并不准确，故其长度相当于地球圆周的四千万分之一是最合理的解释，所以答案为B。
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