题目内容:
What keeps Grimsvotn still?
A.The slow flow of water
B.The low water temperature
C.The thick glacier
D.The water pressure
参考答案:【答案仅供学习,请勿对照自行用药等】
What keeps Grimsvotn still?
A.The slow flow of water
B.The low water temperature
C.The thick glacier
D.The water pressure