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外语
A、We lose a day. B、We add 24 hours. C、We gain 12 hours. D、We add an extra month. BWhat happens every fourth year?
A、We lose a day. B、We add 24 hours. C、We gain 12 hours. D、We add an extra month. BWhat happens every fourth year?
admin
2009-04-23
65
问题
When Rome emerged as a world power, the difficulties of making a calendar were well known, but the Romans complicated their lives because of their superstition that even numbers were unlucky. Hence their months were 29 or 31 days long, with the exception of February, which had 28 days. However, four months of 31 days, seven months of 29 days, and one month of 28 days added up to only 355 days. Therefore the Romans invented an extra month called Mercedonius of 22 or 23 days. It was added every second year.
One year, made 445 days long by imperial decree, brought the calendar back in step with the seasons. Then the solar year(with the value of 365 days and 6 hours) was made the basis of the calendar. The months were 30 or 31 days in length, and to take care of the 6 hours, every fourth year was made a 366-day year. Moreover, Caesar decreed the year began with the first of January, not with the vernal equinox in late March.
This calendar was named the Julian calendar, after Julius Caesar, and it continues to be the calendar of the Eastern Orthodox churches to this day.
选项
A、We lose a day.
B、We add 24 hours.
C、We gain 12 hours.
D、We add an extra month.
答案
B
解析
What happens every fourth year?
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0
大学英语四级
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