52. Lake Placid Conference, 1899, named the academic field Home Economics. Who was
the chairperson and the key role in this first conference of the field？
(A)Maria Tecla Montessori
(B)Ellen Swallow Richards
(C)Emma Willard
(D)Grace Dodge
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於 1899 年的柏拉塞特湖會議（Lak...
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