以下是引用necrophile在2003-10-16 11:40:00的发言: da..... my bad, about the fourth floor, i type wrong le, it's A, as i said previous when temp goes up, the grass was fill in, therefore when temp goes up, then throw the grass.
make a lot of confusion. sorry
sorry, i can't catch what you mean. answer A"the grass was removed from the space between the animal skins and the liner". there is an insulating air pocket between the animal skins and the liner,right? they didn't the grass was removed.
i am confusing about that. |