单项选择题

They launched a campaign to protect animals and required many passers-by to sign a ______ against experiments on animals.

A．pamphlet
B．petition
C．plea
D．partition
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单项选择题
Guidelines should be ______ for dealing with the abrupt emergencies.
A．drew on
B．drew in
C．drew up
D．drew down
单项选择题
Now that external pressures are no longer enough to keep most couples together, a more ____ way is called for.
A．conscientious
B．conscious
C．consecutive
D．corporate
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