a project has a main entrance and two secondary entrances in the alley. What is

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试卷: LEED v4 BD+C英文模拟题（C）[查看]
a project has a main entrance and two secondary entrances in the alley. What is the correct statement about the no smoking signs?
A: Only the main entrance needs to be posted, and the sign is within 3 meters from the entrance
B: Both the primary and secondary entrances need to be posted, and the signs are within 3 meters from the entrance
C: Only the main entrance needs to be posted, and the sign is within 7.5 meters from the entrance
D: Both the primary and secondary entrances need to be posted, and the signs are within 7.5 meters from the entrance

参考答案: B