单项选择题

A．Mary earned the prize.
B．Mary has granted the prize.
C．Mary fails in the speech contest.
D．The man doesn’’t think Mary deserves the prize.
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单项选择题
Which of the following is true about the expressed sequence tags
A．They’’ are difficult to mark’’ off.
B．They contain unidentified genetic information.
C．They contain the entire human genetic information.
D．They are genes whose specific functions have been identified.
单项选择题
A．To borrow his book.B．To talk about the term paper.C．To invite him to go canoeing.D．To ask him out for dinner.
A．To borrow his book.
B．To talk about the term paper.
C．To invite him to go canoeing.
D．To ask him out for dinner.
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