In the cost of property management services, the estimation of cleaning costs includes ().

The knowledge points of this exam are the contents of the estimation of cleaning and sanitation costs in property management service fees. Cleaning and sanitation expenses refer to the daily cleaning and maintenance expenses of the * * * parts of the building and the public * * * areas. In which: (1) purchase fee for cleaning tools; (2) labor insurance supplies; (3) the cost of cleaning machinery and materials; (4) septic tank cleaning fee; (5) Freight charges outside garbage; (6) Pool cleaning fee; (7) Other expenses. Options D and E in the question belong to the estimation of greening maintenance cost.