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【单选题】

​3. History of the Solar CalendarA Solar Calendar is a way of measuring and recording periods of time.It takes for the Earth to revolve around the Sun. With the help of the solar calendar, we can predict the times in which the sun will set and rise every day throughout the course of the year as well as the occurence of Solar and Lunar Eclipses when it is compared to the Lunar Calendar.The solar calendar was first developed by the Egyptians who used the annual appearance of the Dog Star-Sirius , which coincided with the yearly flooding of the Nile River, as a fixed point. However, the Egyptians forgot to consider the extra fraction of a day in their 365 day calendar. Later, the Roman republic calendar, based on the Lunar Calendar of the ancient Greeks, was replaced by Julius Caesar in favour of the Julian Calendar. The Julian Calendar allowed for February’s leap year but made the solar year too long by adding a quarter of a day annually. By the 16th Century, the extra time accumulated to form an error of around 10 days which was corrected in the form of the current Gregorian Calendar.In the Western World, the definition of the year is based on the Earth’s revolution around the Sun and, therefore, is referred to as a “Solar Year”. However, several varieties of Solar years exist:A Tropical Year lasts 365.242199 days UT and the name refers to the changes of seasons (from the greek ‘tropai’ meaning “the turning points”) which are fixed in this kind of year.A Sidereal Year lasts 365.256366 days UT and is the interval between two successive passages of the Mean Sun at the same star.​What is the difference between a Lunar and Solar Calendar?There are 365 days in a solar calendar year and an additional day during leap years. In a Lunar calendar, there are 354 days and 384 in a leap year. A Lunar Calendar will shift very quickly in contrast to a solar calendar.​ 5. Which one is wrong about the solar calendar?

A.
In the Western World, the definition of the year is based on the Earth’s revolution around the Sun.
B.
The solar calendar was first developed by the Egyptians.
C.
A Tropical Year lasts 365.256366 days UT.
D.
The solar calendar coincides with the yearly flooding of the Nile River.
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【单选题】8. Oxford, City of Dreaming SpiresOxford is the county town of Oxfordshire and famous worldwide for its prestigious university, the oldest in the English-speaking world. In his poem ‘Thyrsis’ the Vic...

A.
Visitors are allowed to look around the University of Oxford.
B.
The Radcliffe Camera is a well-known camera.
C.
Some scenes from the Harry Potter films were shot at Oxford University.
D.
The University of Oxford is the oldest in the English-speaking world.

【单选题】5. The first migrants to North AmericaWithin the span of a hundred years, in the seventeenth and early eighteenth centuries, a tide of emigration—one of the great folk wanderings of history—swept from...

A.
Because of the interplay of the varied national groups upon one another.
B.
Because of the huge difficulty of following old-world ways in new land.
C.
Because of the force of geographic conditions.
D.
All of the A, B and C.

【单选题】3. History of the Solar CalendarA Solar Calendar is a way of measuring and recording periods of time.It takes for the Earth to revolve around the Sun. With the help of the solar calendar, we can predi...

A.
Comparatively, a solar calendar will shift very quickly.
B.
There is an additional day during solar year.
C.
In a Lunar calendar, there are 384 days.
D.
There are 365 days in a solar calendar year.
相关题目:
【单选题】8. Oxford, City of Dreaming SpiresOxford is the county town of Oxfordshire and famous worldwide for its prestigious university, the oldest in the English-speaking world. In his poem ‘Thyrsis’ the Vic...
A.
Visitors are allowed to look around the University of Oxford.
B.
The Radcliffe Camera is a well-known camera.
C.
Some scenes from the Harry Potter films were shot at Oxford University.
D.
The University of Oxford is the oldest in the English-speaking world.
【单选题】5. The first migrants to North AmericaWithin the span of a hundred years, in the seventeenth and early eighteenth centuries, a tide of emigration—one of the great folk wanderings of history—swept from...
A.
Because of the interplay of the varied national groups upon one another.
B.
Because of the huge difficulty of following old-world ways in new land.
C.
Because of the force of geographic conditions.
D.
All of the A, B and C.
【单选题】3. History of the Solar CalendarA Solar Calendar is a way of measuring and recording periods of time.It takes for the Earth to revolve around the Sun. With the help of the solar calendar, we can predi...
A.
Comparatively, a solar calendar will shift very quickly.
B.
There is an additional day during solar year.
C.
In a Lunar calendar, there are 384 days.
D.
There are 365 days in a solar calendar year.
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