The earth is ______ the moon a.as 49 times big as b.49 times as bigger as c.49 times as big as d.

问题描述:

The earth is ______ the moon a.as 49 times big as b.49 times as bigger as c.49 times as big as d.
as big as 49 times
选哪个横杠上填啥?

C