The cakes were delicious. He'd like to have _____ third one,

because _____ second one he ate was too small. [ ]

A. a; a

B.  /; the.

C. the; a

D. a; the

下列关于降温池设计的叙述中，错误的是( )。

A．间断排放污水时，应按最高日排水量与所需冷却水量的总和计算有效容积

B．有二次蒸发时，高温污水进水管口应插入水中深度200mm以上

C．有压高温污水进水口宜装设消声设施

D．虹吸排水管管口设在水池顶部