China's first Mars exploration mission was officially named "Tianwen-1" on Friday, according to the China National Space Administration (CNSA).
In 2016, China launched a global campaign for the name and logo of its first Mars Mission, and has received 35,000 submissions, after online polls. Tianwen series are names given to the planetary missions.
The name, Tianwen, which literally means "ask the sky," comes from Chinese great poet Qu Yuan's long poem, reflecting Chinese people's persistence in seeking truth and exploring nature and the universe.
 Planetary Exploration of China are taken as a whole, with the logo including the planets. Eight planets of the solar system are lined up, representing the richness of scientific discoveries. Resembling the letter C, it stands for China's planetary missions, the spirit ofcooperation, and the capability for deep space exploration.
The mission is to launch a Mars probe in 2020, aiming to complete orbiting, landing and roving in one mission.
Of the eight major planets in the solar system, Mars is close to Earth. Taking 24 hours and 37 minutes to rotate, Mars rotates At almost the same speed as Earth. There are also four seasons spring, summer, fall and winter on Mars. Because of these similarities, the probe to Mars can help us study the evolution and future development of the planet. After it is launched, it will take the probe about seven months to reach Mars.
Mars, here we come. 1. When did China launch a global campaign for the name and logo of its first Mars Mission?
A. 2020 B. 2019 C. 2016. D2017. 2. Why was China's first Mars mission named after Qu yuan's long poem ' tian wen'
A. Because Qu yuan is a great poet.
B. Because the poem is great.
C. Because people like the poem.
D. Because from the poem we can find Chinese people's persistence in seeking truth and exploring nature and the universe.3. How long will it take the probe to arrive in Mars after it is launched?
A. about 12 months B. about 10 months C. about 7 months D. about 6 months
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