单项选择题

A．The students needed off-campus job.
B．The theater department needed more talented students.
C．The opera company was looking for volunteers.
D．The new dean thought it would provide good experience for the students.
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单项选择题
We learn from the passage that animal clones am likely to have______.
A．an abnormal shape
B．a bad temper
C．defective organs
D．immune deficiency
单项选择题
By cloning Missy, Mark Westhusin hopes to______.
A．examine the reproductive system of the dog species
B．find out the differences between Missy and its clones
C．search for ways to modify its temperament
D．study the possibility of cloning humans
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