已知圆锥的底面半径为3cm,母线长为4cm,则该圆锥的侧面展开图的面积为______cm2.
底面半径为3cm,则底面周长=6πcm,侧面面积=12×6π×4=12πcm2.
(2013·四川高考)Nowadays people are more concerned about the environment ________ they live.
A.what
B.which
C.when
D.where
女性,45岁,外出横穿马路时被汽车撞伤而入院,查病人呼吸困难,每分钟36次,紫绀,PaO2为50mmHg,PaCO2为48mmHg,PaO2/FiO2值<260,肺部×线摄片呈现片状“雪花”状,应考虑为
A.MODS
B.MSOF
C.DIC
D.ARDS
E.SHOCK