JT1-CZ2000机车信号主机板电源块的输出噪声电压小于()
A、0.1%
B、1%
C、3%
D、5%
参考答案:B
— How firm she is!
— That's the point! Her spirits __________ very well despite all her bad luck.[ ]
A. keep up with
B. have kept on
C. have kept up
D. were kept up
某建筑安装公司为安装下水管道,在马路—侧挖沟,并于夜间在沟边设置了警示灯。一日,因电线老化导致短路,警示灯熄灭,恰有甲夜间骑自行车逆行途经此处,摔人沟内并受伤。在甲向建筑安装公司索赔过程中,该公司被市政总公司兼并。甲遂向市政总公司索赔,但遭到拒绝。请综合分析本案所涉及的法律问题。
甲受伤害属于()致人损害
A.建筑物
B.产品
C.地面施工
D.从事高度危险作业