— What does the notice say?

— All the storytellers should meet at the same hall _____ won the first three prizes. [ ]

A. what

B. as

C. who

D. which

对三油楔轴瓦各油楔的深度进行测量时，可将直尺放在轴瓦前和后的阻油边上，再用塞尺或深度尺进行测量检查。