严禁在线间距小于7.5米的上下行正线间、岔区警冲标外方、邻线股道内避车。
查看答案
混凝土小型空心砌块是以水泥、砂、石等普通混凝土材料制成的,其空心率为20%。
A. 正确
B. 错误
Which three best describe the customer benefits of the Cisco Lifecycle Services approach?()
A. improve the skill sets of its staff members
B. increase the value of and return on investment for its networks
C. increase network staff productivity
D. increase the amount of server room rack space
E. improve network availability, resiliency, security, and scalability
F. increase the amount of time required to integrate network change
生产、经营、使用黑火药、烟火药、引火线的企业,丢失黑火药、烟火药、引火线未及时向当地安全生产监督管理部门和公安部门报告的,由公安部门对企业主要负责人处()的罚款,对丢失的物品予以追缴。
A. 5千元以上1万元以下
B. 5千元以上2万元以下
C. 1万元以上2万元以下
D. 1万元以上3万元以下