21.   He said he supported plans for an instant check system whereby prospective gun buyers would be subjected to a check of their criminal record.

22.   Technology has been on display, with a laser-light security check system on passes and a fingerprinting device to help prevent tampering.

n. + system >>共 804
computer 5.46%
school 2.85%
defense 2.63%
missile 2.33%
justice 2.00%
pressure 1.82%
tax 1.74%
security 1.68%
cable 1.60%
control 1.49%
check 0.06%
check + n. >>共 216
point 18.54%
list 4.97%
post 4.47%
system 3.64%
fraud 2.98%
swing 2.65%
book 2.15%
valve 2.15%
casher 1.99%
card 1.82%
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