在保障行车道宽度的前提下,工作区和纵向缓冲区与非封闭车道之间宜布置()。
A. 路拦
B. 交通锥
C. 横向缓冲区
D. 临时标线
查看答案
A loaded hopper barge with independent tanks has a placard,with alternating red and white quadrants,on each side and end. Which statement concerning this barge is TRUE?()
A. The cargo will spontaneously ignite if released to the atmosphere
B. You must operate this barge as a lead barge
C. The barge should be spotted as far away from the towboat as possible
D. The barge must be in a protected position within the tow
降压变压器停电时应先拉开()断路器。
A. 高压侧;
B. 中压侧;
C. 低压侧;
D. 电源侧。
硫酸镁样品0.9045g,用0.05120mol/LEDTA溶液测定,消耗20.50ml。样品中含MgSO4.7H2O为()。
A. 20.40%
B. 28.30%
C. 30.21%
D. 40.32%
管教民警在谈话教育中发现()情形,应当报告所领导。
A. 在押人员举报监室内的一般违规情况
B. 在押人员检举违法行为
C. 在押人员有重大安全风险
D. 在押人员有情节严重的抵触监管行为