提升机主轴轴向水平度不得大于()。
A.0.1%
B.0.2%
C.0.1‰
D.0.2‰
参考答案:C
I'm interested in a onebed room. Do you have any ________?[ ]
A. convenient
B. available
C. possible
D. personal
对卷烟消费趋势和消费需求变化的研究,从宏观和微观上分别重点把握哪“六大因素”?