【单选题】9•How does the Cospas-Sarsat satellite system determine the position of a ship in distress?1By measuring the Doppler shift of the 406 MHz signal taken at several different points in itsorbit.2The EPIR...
【单选题】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 ...
【简答题】Directions: Watch the video and fill in the blanks with the missing words or phrases. Spell the words or phrases according to the context clue. Please include the first letter.In the spring we sang of...
【单选题】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 ...
A.
There are 365 days in a solar calendar year.
B.
In a Lunar calendar, there are 384 days.
C.
Comparatively, a solar calendar will shift very quickly.