The plumb line is always perpendicular ______ the horizontal plane.A、withB、from

游客2023-11-19 24

问题 The plumb line is always perpendicular ______ the horizontal plane.

选项 A、with
B、from
C、at
D、to

答案 D

解析 perpendicular to固定搭配，意为“与……成直角，垂直”

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