中国大学MOOC: 2. In _____ areas and on some mountaintops，glaciers move slowly downhill and across the land．
中国大学MOOC: 2. In _____ areas and on some mountaintops，glaciers move slowly downhill and across the land．
2. In _____ areas and on some mountaintops，glaciers move slowly downhill and across the land． A: frigid B: crumble C: towering D: parched
2. In _____ areas and on some mountaintops，glaciers move slowly downhill and across the land． A: frigid B: crumble C: towering D: parched
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