A:细铁丝在氧气中燃烧,有黑色固体生成
B:白磷在氧气中燃烧,生成五氧化二磷
C:硫在氧气中燃烧,产生淡蓝色火焰
D:木炭在氧气中燃烧,发出明亮的火焰
— How many apples did you pick when you were on the farm?
— I picked _______ apples than any other student in my class.
n个连续自然数按规律排成下表,根据规律,2011到2013,箭头的方向依次为( )
下列说法正确的是( )