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Question 1
According to the passage, which of the following is probably NOT true of the surface of Io?
A. It is characterized by intense tectonic activity.
B. Its volcanoes have resulted from powerful tides.
C. It is younger than the surface of Callisto.
D. It is distinguished by many impact craters.
E. It has apparently not been shaped by internal force.
我的答案： 无