Which of the following sign means “No smoking”?

问题补充：

Which of the following sign means “No smoking”?

答案：

解析：结合常识可知选项中三个标志分别是禁止停车标志，禁止吸烟标志和禁止左转弯吧表示，句意：下列哪个标志意思是“禁止吸烟”?根据题意，可知选B。