The area of grass should be kept short to deny pests a place to live 回答
A campus emergency ______ occur at any time of the day or night, weekend, or holiday, with little or no warning.
()involves comparing actual or planned project practices to those of other projects to generate ideas for improvement and to provide a basis by which to measure performance. These other projects can be within the performing organization or outside of it, and can be within the same or in another application area.
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