赞题库-背景图
单项选择题

What is this article about

A．Energy from the sun.
B．How oil is made.
C．Natural gas.
D．Saving energy.
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热门试题

单项选择题Solar energy causes

A．less pollution than oil
B．the same pollution as oil
C．more pollution than oil
D．financial problem

单项选择题The biggest reason for not using more solar power now is ______. A ) money C) space B) time D) pollution

The biggest reason for not using more solar power now is ______. A ) money C) space B) time D) pollution