The purified 3H-DNA (sp. activity, about 3 x 10~cpm) used in this experiment was obtained from EBV-stimulated human lymphccytes growing in medium containing pH]thymidine. As recipient cells on transfection, the following human cells were used after short term cultures: skin fibroblast ceils ...
B. CPM C. Gantt chart D. PERT 点击查看答案&解析手机看题 单项选择题 A project life cycle is a collection of generally sequential project ___ whose name and number are determined by the control needs of the organization or organizations involved in the project. The life cycle provides the ...