车站是指设有一定数量配线并将铁路线划分成（）的地点。
A.区段
B.区间
C.闭塞分区
D.养路工区
参考答案：B
Public relations practice is the deliberate , planned and sustained effort to establish and maintain mutual understanding between an organization and its public.
A．complete
B．related
C．intentional
D．active
缺铁性贫血患儿应用铁剂的护理要点，叙述不正确的是
A．长期服用可致铁中毒B．如出现黑便应停止用药C．一般服药疗程为2～6个月D．可与维生素C同时服用E．应从小剂量开始服用
