单项选择题

According to the passage, if the low lands were completely deforested the altitude of the cloud base would ______.

A．become scarce
B．rise about 200m above today's height
C．remain the same
D．destroy the ecosystems there
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单项选择题
The passage is mainly about ______.
A．the successful strategies for the sugar water industry
B．the cola fight between Coke and Pepsi
C．the reasons for the decline of Coke
D．the importance of image in 15romotion plan
单项选择题
Satellite photos shows that the clouds are absent or scattered over deforested areas and this could be supported by the following evidences EXCEPT for ______.
A．the clouds over the forest of neighboring Nicaragua
B．computer simulations of day
C．the gradual shifting of bird living upslope
D．a recent population decrease of frogs and toads
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