单项选择题

It seems that Opel’s chief engineer is ______ the development of alternative energies.

A．optimistic about
B．pessimistic about
C．not enthusiastic about
D．devoted to
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单项选择题
A neighborhood watch scheme will probably do all of the following EXCEPT ______.
A．helping to install anti-theft devices
B．raising citizens’ consciousness of community safety
C．helping citizens to claim a lost property
D．encouraging citizens to report suspicious events
单项选择题
Legalization and regulation of commercial vices would bring all of the following benefits EXCEPT that ______.
A．the police force could be reduced
B．illegal dealers would be forced out of business
C．there would be no more drug dealers
D．the practices might become a source of revenue
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