题目内容

listen to the recording

A. . They were made of rock, and covered with ice.
B. . They were orbiting around the planet Jupiter.
C. . They stopped growing in the process of becoming full-size planets.
D. . They stopped growing into full-sized planets because of their size.

查看答案

搜索结果不匹配？点我反馈

更多问题

A. . Exploring the universe.
B. . Traveling in the space.
C. . NASA shuttle flight plans.
D. . Unemployment at NASA.

A. . Expensive and dangerous.
B. . Cheap and commonplace.
C. . Dangerous but convenient.
D. . Expensive but worthwhile.

A. . They are well-paid.
B. . They are well-trained.
C. . They are becoming specialized.
D. . They are becoming unemployed.

A. . It seems quite normal.
B. . It is a depressing topic.
C. . It sounds a bit strange.
D. . It is getting more serious.