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.
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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
单项选择题
It can be seen that present cloning techniques______.
A．provide insight into the question of nature vs. nurture
B．have been widely used in saving endangered species
C．have proved quite adequate for the cloning of humans
D．still have a long way to go before reaching maturity
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