When the tank can carrying poisonous gas ran off the rails the firemen tried to_____the village from all traffic.

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问题 When the tank can carrying poisonous gas ran off the rails the firemen tried to_____the village from all traffic.

选项 A、dismiss
B、insulate
C、isolate
D、expel

答案C

解析 词汇题。isolate表示“隔离”、“分开”的意思,如The farm is isolated;The nearest house is 30kilometers away.这个农场与世隔绝,离它最近的住家在30公里以外。dismiss意为“解散”、“解雇”,如:If you’re late again you’ll be dismissed.你如果再次迟到,就将被解雇。insulate“隔离”、“绝缘”,如:Theroyal family is insulated from many of the difficulties faced by ordinary people.王室人员都无需应付平民所面临的许多困难。expel意为“驱逐”、“排出”,如:The pupil was expelled for stealing.那学生因偷窃被开除。选C。
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