智力残疾是指人的智力明显低于一般人的水平，并显示适应行为障碍，智力残疾

Intellectual disability refers to the fact that a person's intelligence is significantly lower than the average person's level, and shows adaptive behavior disorder. Intellectual disability includes: during the period of intellectual development, due to various reasons for mental retardation; after intellectual maturity, due to various reasons. Dementia due to injury and marked mental decline in old age

Intellectual disability refers to that people's intelligence is significantly lower than that of ordinary people and shows adaptive behavior disorder. Intellectual disability includes: mental retardation caused by various reasons during intellectual development; After intellectual development and maturity, dementia is caused by intellectual impairment caused by various reasons and obvious mental decline in old age

Intellectual disability refers to the fact that people's intelligence is obviously lower than that of ordinary people, and shows the disorder of adaptive behavior. Intellectual disability includes: mental retardation caused by various reasons during the period of intellectual development; After intellectual maturity, dementia caused by intellectual damage caused by various reasons and obvious decline of intelligence in old age.