21.   The theft was uncovered recently during a routine audit.

a. + audit >>共 215
internal 12.95%
independent 8.75%
state 3.41%
annual 3.18%
favorable 2.95%
external 2.73%
routine 2.39%
financial 2.27%
medical 2.27%
environmental 2.16%
routine + n. >>共 938
check 3.95%
maintenance 3.77%
inspection 3.11%
patrol 2.96%
mission 2.23%
flight 2.08%
test 2.05%
checkup 1.87%
procedure 1.49%
grounder 1.44%
audit 0.53%
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