你将听到一篇短文,请根据短文内容,选出每个问题的最佳答案,并在答题卡上将选定答案的字母标号涂黑。短文读两遍。
17. When did people start to build the International Space Station?
A.In 1998. | B.In 2011. | C.In 2018. |
18. Which country operates one part of the International Space Station on its own?
A.China. | B.Russia. | C.America. |
19. How many people had visited the International Space Station by January 2018?
20. What do astronauts do on the space station?
A.They do much important work. | B.They go to journey. | C.They have a lesson. |
21. What does the speaker think of the life on the International Space Station?
A.Easy. | B.Boring. | C.Difficult. |