单项选择题

What did people do to solve the problem of rain lack around Chad Lake

A．They moved out of this area.
B．They drew water from Lake Chad.
C．They carried water from other areas.
D．They utilize sea water near this are
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单项选择题
Which of the following is true according to this passage
A．Chad Lake located in the middle of Chad in northern Africa.
B．The water from Chad water can now only be used for irrigation.
C．The area around Chad Lake has suffered from heavy rain lack many decades.
D．Population around the Chad Lake now begins to decrease due to water lack.
单项选择题
What is this passage mainly about
A．Demonstrating the serious weather condition around Lake Chad.
B．Introducing people's activity around Lake Chad.
C．Analyzing of the factors that cause water decreases in Lake Chad.
D．Introducing scientists' work about water condition in Lake Cha
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