The passage focuses on comets primarily in terms of their Why does the author mention the Giotto probe in paragraph 3?

admin2004-12-28  49

问题  The passage focuses on comets primarily in terms of their
  Why does the author mention the Giotto probe in paragraph 3?

选项 A、It had a relatively small and inconspicuous nucleus.
B、It was very similar to an asteroid.
C、It was covered with an unusual black dust.
D、It provided visual evidence of the makeup of a comet’s nucleus.

答案D

解析
转载请注明原文地址:https://jikaoti.com/ti/Y7AYFFFM
0

最新回复(0)