单项选择题


A．readiness
B．preparations
C．preoccupation
D．preparedness
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单项选择题
A．whoB．whyC．whereD．when
A．who
B．why
C．where
D．when
单项选择题
A．act uponB．act againstC．adhere byD．abide to
A．act upon
B．act against
C．adhere by
D．abide to
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