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单项选择题

A．A report.
B．A book review.
C．A research study.
D．A five-page composition.
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单项选择题Before DNA fingerprinting is used, suspects ______.

A．would have to leave their fingerprints for further investigations
B．could easily escape conviction of guilt
C．would have to submit evidence for their innocence
D．could be convicted of guilt as well

单项选择题A．The patient must receive treatment regularly.B．The patient can’’t leave the hospital until the bleeding stops.C．The patient’’s husband can attend to the business in her place.D．The patient must take a good rest and forget about her business.

A．The patient must receive treatment regularly.
B．The patient can’’t leave the hospital until the bleeding stops.
C．The patient’’s husband can attend to the business in her place.
D．The patient must take a good rest and forget about her business.