英文: 20th century is a century of flying be expanding by leaps and bounds development of the productivity, and is a century of ecology environment deteriorated.
英文: 6 Obstetrics and gynecology are combined in the specialty that deals with pregnancy and birth and diseas es of the female reproductive system.
英文: A campaign that promotes ecology and fights pollution.
英文: A study in the April issue of the American Journal of Obstetrics and Gynecology suggested that the current guidelines may raise the risk of mothers having overweight toddlers.
英文: “Blue-eyed men may have unconsciously learned to value a physical trait that can facilitate recognition of own kin,“ the scientists said in the journal Behavioral Ecology and Sociobiology.