有一种自行车尾灯设计得很巧妙.当后面汽车的灯光以任何方向射到尾灯时,它都能把光钱“反向射回”.如图是4种尾灯的剖面示意图,其中用于反光的镜面具有不同的形状.能产生上述效果的镜面是( )
A.
B.
C.
D.
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A.
B.
C.
D.