问题
选择题
Armed police and railway workers were removing snow from the track to _______ a train stuck near Jining in Inner Mongolia.
A．recover
B．free
C．protect
D．clear
答案
答案：B
动词词义辨析题。A．recover康复 B．free 使…自由C．protect 保护D．clear 清晰 句意：武装警察以及铁路工人在清除路上的积雪为的是弄出在内蒙古集宁被困的火车。 根据语境选B