单项选择题

In 1986 the country initiated restrictions on the use of pesticides.

A．instituted
B．constituted
C．prosecuted
D．distributed
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单项选择题
This program will take kids who have a manifest history of violent acts.
A．determined
B．demonstrated
C．administrated
D．distinguished
单项选择题
In the country we are excluded from the worries of life in a big town.
A．enveloped
B．protected
C．insulated
D．subtracted
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