In evacuation from a ship，an individual without the option of a survival craft or liferaft should enter the water on the leeward side，except when（）.

A.there is burning oil on the water

B.there is a rescue craft in the area

C.water temperature is below 40°F

D.a rigid survival craft is in the area

项目建设单位在同一时期同一地点原则上只能申报一个相同类别的项目。待上一个项目的实施形象进度超过（）后方可申报下一个项目。

A.50%

B.60%

C.70%

D.80%