“只有迎着群众需求上,贴着群众认可改,瞄准群众满意干,才能体现改革的温度和力度。”这句话蕴含的哲理是()。
A. 实践是有目的性的活动
B. 社会存在反作用于社会意识
C. 正确的认识能够很好地指导实践
D. 个人价值必须在社会中才能实现
面铣刀的主偏角影响刀尖强度、散热性能及轴向分力大小。故在工艺系统刚度允许的条件下,尽可能取()值,一般可取45º~75º。
A. 较小
B. 中间
C. 较大
D. 90º
Only then()how much damage had been caused.
A. she realized
B. she had realized
C. had she realized
D. did she realize