运用动态控制原理控制施工成本的步骤中，第一步应做的工作是( )。

A．按照成本控制的要求收集施工成本的实际值

B．找出偏差，采取纠偏措施

C．施工成本目标的逐层分解

D．定期对施工成本的计划值和实际值进行比较

____________for children, the album became popular with parents __________it came out.

A．Designed; when

B．Designed; immediately

C．To design; as soon as

D．Designing; as