单项选择题

A．updated
B．fair-minded
C．underprivileged
D．well-defined
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单项选择题
Elen Evans' technology of new protein design may prove useful
A．in athletic training programs.
B．in film making spectacles.
C．in software programming.
D．in medical treatments.
单项选择题
The DNA designed by Evan's technology differs strikingly from that synthesized by existing technology in that the former is characterized by its
A．desirable shape and length.
B．imitation of a living cell.
C．delicate but destructive power.
D．resistance to epidemics.
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