There are five short dialogues about China. Listen carefully, and choose the best answer to the question.[音频]Q: What has changed for China according to the dialogue?
A. It has new trading partners.
B. It has become a world power.
C. It has no world status.
D. It has become a regional power.
Q: Why does China have the attention of NASA?
A. It has landed on the dark side of the Moon.
B. It has landed on Mars.
C. It has a space station on the Moon.
D. It has landed on the Venus.