单选题
[阅读判断]People living north of the mountain heard a loud boom that shook their windows， and airline pilots flying near the volcano soon afterwards described a thick black column of ash and steam shooting more than 2，100 meters into the sky.
Q： Pilots flying at the height of more than 2，100 meters saw a thick black column of ash and steam shooting up into the air from the crater.
A.True
B.False
C.Not Given
正确答案：B
答案解析：答案选B。该题说的是: 飞行员飞行的高度超过2100米时，看见一个黑色的火山灰和蒸汽从火山口急速上升到空气中。但是，文章中airline pilots flying near the volcano soon afterwards described a thick black column of ash and steam shooting more than 2,100 meters into the sky.说的是靠近火山的地方出现了一个黑色的火山灰和蒸汽上升到空气中，其高度超过2100米。因此该命题是错误的。