单项选择题

The main idea of this passage is that ______.

A．supermarkets are becoming more and more popular
B．computers find use in supermarkets
C．a new way of checking out in supermarkets
D．people are not used to the new machine

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热门试题

单项选择题

What is the wind energy capacity of Germany in 1998

A．600 megawatts.
B．800 megawatts.
C．2,100 megawatts.
D．2,800 megawatts.

单项选择题

What is NOT significant of the increase of wind power

A．Wind power is the fastest growing energy source.
B．Wind power has become an ever-expanding industry.
C．The wind power is creating thousands of jobs in Germany.
D．The electricity generated by wind power in 1999 is enough for 3. 5 million suburban homes.