在大接地电流系统中,当线路上故障点逐渐靠近保护安装处时,流经保护电流的变化陡度:零序电流变化陡度较相间故障相电流变化陡度大。
参考答案:对
解析:
知识点:基础知识
My ipad looked just the same as Tom’s, but it cost his.
A.as much twice as
B.twice as much as
C.much as twice as
D.as twice much as
价值工程中的“价值”是指所分析对象的( )。
A.比较价值
B.使用价值
C.交换价值
D.经济价值