题目内容

如图，街道XYZ在y处拐弯，Xy=1 125米，YZ=855米，在街道一侧等距装路灯，要求X、Y、Z处各装一盏路灯，这条街道最少要安装多少盏路灯？()

A. 47
B. 46
C. 45
D. 44

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