The agency estimates some 13 per cent of Canadian families and 22 per cent of Quebec families are composed of households where biological fathers are absent.
该机构估计，大约有13%的加拿大人家庭和22%的魁北克人家庭属于缺少生物学意义上的父亲的家庭。
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The German space agency has supplied an experimental box containing fish, plants, worms, bacteria and even human cancer cells for a series of biological studies.