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The troops have been on the ______ for a possible enemy attack.A、alarmB、alertC
The troops have been on the ______ for a possible enemy attack.A、alarmB、alertC
游客
2024-01-02
41
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问题
The troops have been on the ______ for a possible enemy attack.
选项
A、alarm
B、alert
C、warning
D、notice
答案
B
解析
A. alarm报警,警报,警报器,B.alert警惕,警报,on the alert for警惕……,警觉……,随时准备着,密切注意着;C. warning警告,D.notice注意,通知。
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