GRE Reading Comprehension: JiJing 352-GRE阅读机经352篇 - 410TVQM56GP4LUYAJ

It can be inferred from the passage that Rubin disagrees with skeptics mentioned in the passage about which of the following? A. Whether porous bodies generate less debris when struck than do solid bodies B. The temperatures asteroids would have to reach for their rocks to have melted C. The likely effect of impacts on asteroids' temperatures