In the face of the big fire in October in California，many people in the fire-stricken areas moved out __________.

A．to escape burning

B．to escape being burned

C．escaping burned

D．escaping from burning

18个月患儿，男性，阵发性哭闹一天伴有呕吐，呕吐物内有蛔虫，腹痛时右上腹部可触及一肿块，轻压痛，右髂窝空虚，肠鸣音亢进，大便呈果酱样，蛔虫卵(+)，立位腹部X线平片见数个小液气平面，首先考虑为：()

A．肠道蛔虫

B．蛔虫性肠梗阻

C．肠套叠

D．肠肿瘤

E．肠扭转