对政府直接投资的非经营性技术方案进行评价，通常应进行（）。

A.生存能力分析

B.偿债能力分析

C.费用效果分析

D.不确定性分析

E.风险分析

A sea anchor is（）.

A.a heavy anchor with an extra long line used to anchor in deep water

B.a cone shaped bag used to slow down the wind drift effect

C.a padeye to which the sea painter is made fast

D.made of wood if it is an approved type