选矿中给入物料的最大粒度指物料()通过某一筛孔尺寸。
A、95%
B、85%
C、75%
D、80%
参考答案:A
________in the fields on a March afternoon,I could feel the warmth of spring,feeling good.[ ]
A. To walk
B. Walking
C. Walked
D. Having walked
针刺睛明穴,医者应直刺______寸,不______,不______。