How to defend project common sense

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Safety is on guard----Make good preparation and protection, be atttacked in order to deal with or prevent suffer injury, it is dangerous to make be in to do not have by protective object thereby, do not suffer enroach on, do not appear the safe condition of the accident.
The society is communal and safe science and technology- - it is precaution, control, processing all sorts of societies violate guilty activity and accident of public security calamity, uphold order of the security of society, regular job that guarantees a society, life, protective country and the omnibus technology technology with people life safe property. It includes safety to be on guard, computer security, investigate, material evidence appraisal, public security management, road traffic administration, fire control, information management, alarm direct with communication...
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