单选题
IT can be inferred from the passage that Europa and Antarctica have in common which of the following?
A、
( Both appear to have a surface with many craters
B、
( Both may have water beneath a thin,hard surface
C、
( Both have an ice can that is melting rapidly
D、
( Both have areas encased by a rocky exterior
【正确答案】
B
【答案解析】
提交答案
关闭