为什么要进行单细胞培养?
参考答案:
1.建立单细胞无性系(cellline)
2.排除体细胞干扰
3.观察单细胞如何进行分裂、分化、生长及发育,为大规模培养作准备
Americans who consider themselves ________in the traditional sense do not usually hesitate to heap criticism in domestic matters over what they believe is oppressive or wasteful.
A.pedestrian
B.penchant
C.patriotic
D.patriarch
应用服务器模式()
A.是三级体系结构
B.在客户端进行业务处理
C.比C/S模式效率高
D.业务逻辑处在中层