单项选择题

The best title for this passage is ________.

A．The Basic Function of Genetic Engineering
B．New Applications of Genetic Engineering
C．Recombinant DNA Technology, a New Process in Genetic Engineering
D．The Promises & Dangers of Technological Development
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单项选择题
It can be inferred from the passage that ________.
A．there will inevitably be a heated debate over the general application of the recombinant DNA technology
B．the use of recombinant DNA technology on human beings will be forbidden
C．recombinant DNA technology can be traced back to hundreds of years ago
D．serious dilemmas may be created when recombinant DNA technology is used to modify human ge- netic codes
单项选择题
Which of the following is NOT mentioned about recombinant DNA technology
A．It can bring about rapid and radical genetic changes in life forms.
B．It can be used to restructure DNA molecules to produce new desired plant and animal breeds.
C．It may increase the risk of producing some unexpected diseases.
D．It proves an effective way to cure cancer and other incurable diseases.
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