问题

(2014年(春)重庆市高三考前冲刺测试卷)6Italy calls an emergency meeting to save the ancient city of Pompeii _____ falling down
A:on
B:off
C:from
D:against【考点】考察介词短语辨析
B:off
C:from
D:against【考点】考察介词短语辨析
正确答案是: