an increased use of and familiarity with 2) __________ technologies

______ (相比之下), our use of oil has increased enormously.

A. cautiously

B. severely

C. accurately

D. seriously

The cure rate of many disease increased dramatically after penicillin was ()by more doctors.

A、 put into practise

B、 put into effect

C、 put to use

D、 put into operation

The increased use of computers in business has been_________ by a costly increase in computer crime．

A．accompanied

B．disappointed

C．matched

D．witnessed

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.

How much has the use of precision-guided weapons increased in the past few years？

A．Less than 6%.

B．More than 6%.

C．More than 3%.

D．Less than 3%.

What effect will the increased use of DME instead of diesel fuel probably have？

A. It will reduce the amount of pollutants in the air.

B. It will increase the amount of unpleasant odors from vehicles.

C. It will eventually destroy the ozone layer.

D. It will reduce the cost of running large vehicles.

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

A．are gaining more economic benefits from domestic operations

B．are attaching more importance to their overseas business

C．have to get familiar with modern technology

D．are eager to work overseas

With the increased use of high-tech communications equipment, business people ______ .

A．have to get familiar with modem 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

Which was one of the results of the increased use of machinery on farms？

A．Intensifying the competition between farmers.

B．Reducing the financial burden of the farmers.

C．Raising the production of specialized crops.

D．Realizing the independence of farmers" life on weather.