Objective : To investigate the cell source secreting the granulocyte granulocyte colony - stimulating factors ( GM - CSF , G - CSF ) in human placenta.目的: 确定脐血中高水平的造血因子的来源.Toyota also started selling its electric - hybri...
The GM diesel engine shunted the coaches to Platform 4.通用柴油动力火车头将车厢转轨到了4号月台。Both GM and Ford believe they need classier brand names to sell upmarket cars.通用汽车公司和福特公司都认为它们需要用更有气派的品牌名称销售高档车。Ford has been gaining market sha...