問題詳情

13. Why does the author mention the Giotto probe in paragraph 3?
(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.

參考答案

答案:D
難度:非常困難0
統計:A(0),B(0),C(0),D(0),E(0)

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