A-A+
There are two great belts or ______ where ninety percent of all earthquakes take place; th
问题详情
There are two great belts or ______ where ninety percent of all earthquakes take place; they may, however, happen anywhere at any time.
A.regions
B.areas
C.zones
D.districts
请帮忙给出正确答案和分析,谢谢!