单项选择题

How much of your country’’s electrical supply is ______from water power

A．deduced
B．derived
C．detached
D．declined
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单项选择题
______ much advice you give him, he does exactly what he wants.
A．Whatever
B．Whichever
C．What
D．However
单项选择题
A．HoweverB．MoreoverC．ThoughD．Therefore
A．However
B．Moreover
C．Though
D．Therefore
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