China's first female astronaut Liu Yang, together with her two male crew mates Jing Haipeng and Liu Wang, met the media on Friday. The three astronauts boarded the ShenzhouⅨ spacecraft on Saturday at the Jiuquan Satellite Launch Center in northwestern China to fulfill China's first manned space docking mission.
"I am grateful to the motherland and the people. I feel honored to fly into space on behalf of hundreds of millions of female Chinese citizens, "said Liu Yang. She said that to be an astronaut, one has to obtain a lot of theoretical knowledge, go through very challenging space living environment training and survive examinations on operation skills with no error.
"The sense of mission and responsibility as well as the passion for aerospace undertakings is the source of courage to overcome difficulties," she said.
"When I was a pilot, I flew in the sky. Now I am an astronaut, I will fly in space. That will be a higher and farther flight, "Liu said.
She said many tasks had been arranged for this space trip. "Aside from fulfilling the tasks, I want to experience the fantastic environment in space and appreciate the beautiful Earth and our homeland from space."
She said she would keep a detailed record of her feelings and experiences and share with scientists and future astronauts when she came back.
"I will live up to your expectations and work with my teammates to fulfil this space mission," she said.
All three crew members are former pilots of the People's Liberation Army (PLA). They are all members of the Communist Party of China.
Enlisted in the army in 1997, Liu was an experienced pilot with 1,680 hours of flying experience and the deputy head of a flight unit of the PLA's Air Force before being enlisted into China's second group of prospective astronauts in May 2010. She is now an air force major.
After two years of training that has shored up her astronautic skills and adaptability to the space environment, Liu excelled in testing and was selected in March this year as a candidate to crew the ShenzhouⅨ.
According to Liu Yang, we know all the following are necessary for an astronaut except _____.

A．obtaining a lot of theoretical knowledge

B．surviving examinations on operation skills

C．experiencing space living environment training

D．keeping calm and confident in any case

Which of the following is TRUE about Liu Yangfrom the passage?

A．Liu once was head of a flight unit of the PLA's Air Force.

B．Liu Yang has become an air force major in 1997.

C．She was enlisted into China's second group of prospective astronauts in 2010.

D．After three years of training Liu was selected as a candidate．

The underlined phrase in the last paragraph probably means“______”．

A．build up

B．put up

C．take up

D．bring up