单项选择题

A．He is satisfied with what Mary did.
B．He doesn’’t mind what Mary did.
C．He has forgotten that Mary borrowed his dictionary once before.
D．He is dissatisfied with what Mary did.
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A．acresB．plotsC．patchesD．areas
单项选择题
It can be seen that present cloning techniques ________.
A．still have a 10ng way to go before reaching maturity
B．have been widely used in saving endangered species
C．provide insight into the question of nature vs. nurture
D．have proved quite adequate for the cloning of humans
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