单项选择题

Solar energy causes

A．less pollution than oil
B．more pollution than oil
C．the same pollution as oil
D．financial problem
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单项选择题
What does this article suggest
A．Oil companies are against solar energy.
B．Many people are afraid of solar energy.
C．Solar energy might ease the energy problem.
D．Shortage of natural gas.
单项选择题
In the next few years, the price of gas will ______.
A．come down
B．go up
C．stay the same
D．ebb and flow
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