单选题 · 选择一个答案
When is it appropriate to use your vehicle horn?
什么时候可以使用车辆喇叭？
Use the horn only as a reasonable traffic warning, without unnecessary or excessive noise.
喇叭只应用作合理的交通警告，不得制造不必要或过大的噪声。
阅读相关知识
Warn of a real traffic hazard. Do not use it to say goodbye, hurry people, express anger or frighten animals.
可在确有交通危险时提醒他人注意；不能用来告别、催促或发泄情绪，也应避免惊吓动物。