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The baby's body is relatively fragile, and the immunity is low. The bacteria and viruses...
Older children can tell you when you are hungry, but little ones cannot, at least...
There is a "critical development period" in the cultivation of any kind of ability of...
Language, as a tool and product of human social communication, is gradually mastered after the...
1. High temperature disinfection The high temperature disinfection of the disinfection cabinet is generally heated...
Children's oral care is of great significance and affects a person's oral health throughout his...