单选题What is the main idea of the passage?A
Human activities are changing the climate.B
Dams make local meteorological conditions worse.C
Dams alter local weather and make themselves unsafe.D
Extreme precipitation events around large dams have increased.
题目
单选题
What is the main idea of the passage?
A
Human activities are changing the climate.
B
Dams make local meteorological conditions worse.
C
Dams alter local weather and make themselves unsafe.
D
Extreme precipitation events around large dams have increased.