A. evaporation B. water cycle C. complicated process D. ever-going-on process E. rainfall F. ground water G. vapor H. transpirat

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问题 A. evaporation
B. water cycle
C. complicated process
D. ever-going-on process
E. rainfall
F. ground water
G. vapor
H. transpiration
I. high land
J. formation of clouds
K. formation of rain
L. cold air
M. drops of rain
N. absorbed by soil
O. porous rock layer
P. non-porous rock layer
Q. accumulation of water
R. process of water cycle

选项

答案R、E

解析
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