青云翻译

In 1981 the U.S. National Federation of the Poor and the definition of learning difficulties has been described and applied more widely recognized that: learning difficulties is a heterogeneous group in listening, speaking, reading, writing, and mathematical reasoning ability to obtain and the use o

1981 United States national learning disabilities Association definition of learning disability and of a more widely recognized and applied, which States: learning disability is a heterogeneous groups in listening, speaking, reading, writing, reasoning, and mathematical ability on the access to and

In 1981 the American country study sleepy federation to studied the difficult limits and the elaboration obtained a more widespread approval and the application, pointed out: Studies the difficulty is refers to neterogeny community in to listen to, to say, to read, writes, the inference and mathemat

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1981 United States national learning disabilities Association definition of learning disability and of a more widely recognized and applied, which States: learning disability is a heterogeneous groups in listening, speaking, reading, writing, reasoning, and mathematical ability on the access to and