Abstract: A communication device for filtering incoming calls includes a phone number database, a rule database, a filter module, and a rule operator module. The phone number database is used for storing a plurality of phone numbers. The rule database is used for storing a plurality of rules that include a plurality of common rules for dealing with incoming calls with phone numbers stored in the phone number database, and a plurality of particular rules for dealing with indefinite incoming calls. The filter module is connected to the phone number database and the rule database, for comparing the phone numbers of the incoming calls with those in the phone number database, and for retrieving rules from the rule database based on the comparison. The rule operator module is connected to the filter module, for dealing with the incoming calls according to the retrieved rules.

Abstract: A multipurpose cleaning agent containing 6.5-8% sodium alkyl sulfate, 2.7-4% fatty acid coconut diethanolamide, 0.38-0.42% citric acid, 0.38-0.42% ethylene diamine tetraacetic acid, 0.42-0.48% sodium citrate, 2.88-3.2% water, 1.88-2.5% sodium polyoxyethylene alkyl ether sulfate, 0.5-1% sodium carboxy methyl cellulose, 0.2-0.4% sodium percarbonate, 2-5% sodium tripoly phosphate, 40.38-35.89% low density sodium carbonate, 40.38-35.89% Na.sub.2 SO.sub.4.H.sub.2 O, 0.4-0.8%, savinase 40T, and 1-2% celluzyme 0.7T.