Which of the following is more important in determining the amount of free surface that will be produced?（）.

A.Outside temperature

B.Dewpoint of the outside air

C.Dewpoint of the air in the cargo hold

D.Temperature of the cargp

若要完成一个过程、阶段或项目，必须完成下列哪一项？（） 

A.预算

B.资源

C.可交付成果

D.进度表