A:①③
B:①④
C:②④
D:③⑤
正在上浮的泡沫塑料块在水中受到的浮力大于重力。( )
流行性感冒是由流感病毒引起的一种呼吸道传染病,春夏是流感的高发期,在此期间要加强体育锻炼,做好个人卫生,保持室内通风,体质较弱的人,可以适时注射丙种球蛋白,若出现流感症状,要及时就诊,并采取隔离措施,根据以上资料,判断下列叙述中错误的是( )
-- What's wrong, Daming?
-- Oh, I feel sad to hear more than _______ people lost their lives in the earthquake in Sichuan at 2:28 on the afternoon of May 12, 2008.