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Most power in the United States does not come from wind,but this may change.Wind is now the
fastest growing source of power in the world.Why is wind power becoming popular?
To understand the answer,we need to know why people did not use wind power so much.It is true that the wind will always blow again,but it isn't always easy to guess when and where it will blow next.
[单选题]
A.the United States will not rely on oil
B.the United States will not use wind power
C.more and more countries are relying on oil
D.more and more countries are using wind power
[单选题]
A.it was not so reliable
B.it was not so strong
C.it cost a lot of money
D.it cost a lot of manpower
[单选题]
A.Shortage of water
B.Shortage of oil
C.Lack of fresh air
D.Lack of clean energy
[单选题]
A.There is enough space for wind farms on land
B.There is little space for wind plants in the ocean
C.Wind farms on land make a lot of noise
D.Wind plants in the air have been built
[单选题]
A.energy saving
B.animal protection
C.weather forecast
D.pollution control
