单选题 · 选择一个答案
When passing a bus displaying a School sign that has stopped to let children on or off, what should your speed be?
如果前方的校车上有如下标识，并且学生们正在上下车，你应该限制车速为多少？
Pass the stopped school bus picking up or dropping off children at no more than 20 km/h, slower if necessary.
经过正在接送儿童的停靠校车，最高每小时20公里，必要时更慢。
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This applies in both directions until well clear. Be ready for children to step out suddenly.
两个行驶方向均适用；保持低速直到远离校车，随时准备应对儿童突然走出。