— _____ made Daisy wild with joy?

— Her success in the A-level exam this year. [ ]

A. How was it that

B. When was it that

C. Why was it that

D. What was it that

按照我国现行建筑安装工程费用构成，下列建筑安装工程费用中，应列入直接工程费的是( )。

A．小型施工机械的安拆费及场外运输费

B．夜间施工增加费

C．新材料试验费

D．施工排水和降水费