VI. Reading Comprehension       Uranus is perhaps the strangest planet in the solar system. Atsome point during its history, the ice giant was knocked over, leavingit spinning on its side. More than a dozen rings circle the world, andsome 27 moons cling to it. The planet’s atmosphere is a collection ofhydrogen, helium, and heavier compounds that exist as ices deep inthe frigid Uranian clouds.       But beyond a handful of intriguing facts, scientists knowwoefully little about this milky blue world, which was visited for thefirst and only time by the Voyager 2 spacecraft in 1986. That could beabout to change.       A report prepared by planetary scientists and released this weekhas recommended that NASA make a mission to Uranus a toppriority for the coming decade, perhaps launching a spacecraft to theseventh planet from the sun—as well as a thousand inevitablejokes—as soon as 2031.      One big draw is that Uranus—and Neptune, the solar system’sother ice giant—might be representative of the most common type ofplanet in the galaxy. Scientists think that solving the mysteries ofUranus, such as its odd magnetic field, shrouded interior structure,and surprisingly frosty temperatures, could be crucial not only forunderstanding ice giants across the Milky Way, but also forunlocking clues about the history of our solar system.
【題組】44. Which of the following facts is true about Uranus?
(A) It is the fifth planet from the sun.
(B) It is extremely hot.
(C) It spins on its side.
(D) It has twelve moons.