Some of the r____ workers and doctors were trapped under the ruins in the disaster area.,
法国启蒙思想反映了一个历史时代的特征,主要因为( )
在平面直角坐标系xOy中,已知点P在x轴下方,在y轴右侧,且点P到x轴的距离为3,到y轴的距离为4,则点P的坐标为( )