单项选择题

The purpose of the latest recycling project is______.

A．to prevent people from putting rubbish into holes
B．to find a way of destroying all kinds of waste
C．to extract useful raw materials from the waste
D．to find out how much raw materials could be provided

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单项选择题

According to the passage, the first full-scale huge recycling plants______.

A．have already been built in large industrial areas
B．will not be built for at least fifteen years
C．will probably be built in the next fifteen years
D．will be too expensive to build near big cities

单项选择题

With the increased use of high-tech communications equipment, businesspeople______.

A．have to get familiar with modern technology
B．are gaining more economic benefits from domestic operations
C．are attaching more importance to their overseas business
D．are eager to work overseas