题目内容：
A.No balloons are allowed in metro.
B.Please don't squat, it is dangerous.
C.All passengers, please be careful and stay back.
D.Please stand behind the yellow safety line while waiting for the train.
参考答案：
选择题：严禁携带充气气球进站,译成英文应该是( )。
- 题目分类：职业技能鉴定
- 题目类型：选择题
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