Black holes are part of space. The center of a black hole is empty.

admin2009-01-21  30

问题 Black holes are part of space.  
The center of a black hole is empty.

选项 A、Right
B、Wrong
C、Not mentioned

答案B

解析
转载请注明原文地址:https://kaotiyun.com/show/3ehd777K
0

最新回复(0)