如图是用显微镜观察到的人血涂片，下列叙述错误的是  

A．血细胞①②③都有细胞膜、细胞质和细胞核  

B．血细胞中数量最多的是①  

C．人体出现炎症时，②的数量会增多  

D．③的作用是止血和加速凝血

The project budget has been finalized．Additional work has been discovered that was not planned for in the budget or project scope．Where could the found to cover the newly discovered work item

A．Contingency reserv

B．Project profi

C．Management reserv

D．Abandoning fun