急性呼吸窘迫综合征（ARDS）的说法下列哪项不正确（）

A.氧和指数（PaO₂/Fi0₂）=300mmHg

B.氧和指数（PaO₂/Fi0₂）=200mmHg

C.氧和指数（PaO₂/Fi0₂）<200mmHg

D.患者急性起病、呼吸困难或呼吸窘迫

E.胸部X线检查显示两肺浸润性阴影

In the absence of external forces, adding weight on one side of a floating vessel causes the vessel to（）.

A.heel until the angle of loll is reached

B.list until the center of buoyancy is aligned vertically with the center of gravity

C.trim to the side opposite TCG until all moments are equal

D.decrease draft at the center of flotation