Which of the pictures below tells people not to fish here?
A:
B:
C:
D:
关于如右图的叙述不正确的是( )
已知抛物线C:y2=2px(p>0)的焦点为F,直线y=4与y轴的交点为P,与抛物线C的交点为Q,且|QF|=2|PQ|,过F的直线l与抛物线C相交于A,B两点.
________number of students went to visit that school last Sunday.