防灾规划的重点是生命系统的防灾措施,( )是生命线系统的核心。
A.交通运输 B.水供应 C.电力供应 D.信息情报
参考答案:C
解析: 电力供应是生命线系统的核心。
We had over 120,000 people here at______weekend and expect to have up to_____-third of that number on the beach today.
A.the; a
B.the; the
C.不填;a
D.a; the
建筑施工扣件式钢管脚手架安全技术规范(JGJ/T130-2011)高度在()及以上的双排脚手架应在外侧全里面连续设置剪刀撑
A.21m
B.22m
C.23m
D.24m