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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热门试题

单项选择题

What does the first paragraph tell us about Westhusin's dog cloning project

A．Its success is already in sight.
B．It is doomed to utter failure.
C．It is progressing smoothly.
D．Its outcome remains uncertain.

单项选择题

By stupid endeavor ( Line 2, Para.1 ), Westhusin means to say that______.

A．human cloning is a foolish undertaking
B．animal cloning is absolutely impractical
C．human cloning should be done selectively
D．animal cloning is not worth the effort at all