日常生产检查原煤煤样可一次破碎到(),允许连续缩分到规定的最小质量,送制样室作快速检查。
A、1mm
B、3mm
C、5mm
D、7mm
参考答案:B
—How was your day off yesterday?
—Perfect! It was my grandma’s ________ birthday. We had a big cake.
A. eighty B. eightieth C. the eightieth
Z代表()
A.化学药品
B.中药
C.生物制品
D.进口药品分包装
E.进口药品