解组站1#液压站为哪些油缸提供动力的？
参考答案：为接受装置压紧油缸、推料油缸、倾翻装置顶推油缸、倾翻油缸、输送推料台推料油缸提供动力。
Kate told me that she _____ a cold for a week. [ ]
A. has
B. had caught
C. had had
D. has had
为了保证薄壁工件的加工精度和便面粗糙度，在镗削薄壁工件各孔时应按（）的原则来进行。
A.孔的大小
B.粗精分开
C.孔的深浅
