【多选题】工程项目成本核算的指标体系中,通常采用( )指标反映施工收入。
【多选题】工程项目成本核算的指标体系中,通常采用( )指标反映项目资金的占用情况。
【多选题】关于运行中的油浸式变压器、电抗器、消弧线圈油中溶解气体含量标准,下列说法正确的是()。
A.
乙炔≤1μL/L(330kV及以上)、乙炔≤5μL/L(其它)
D.
绝对产气速率:≤12mL/d(隔膜式)或≤6mL/d(开放式)
【单选题】进行发动机ECU电源电压测量时,蓄电池电压不低于11V,连接器插接良好,点火开关闭合,( )。
D.
使用指针式万用表的直流电流档 注释: A和D肯定是错的,电流表测不了电压。B和C里面高阻抗是一个关键词。测量电压时,高阻抗万用表能提高所测电压的准确度。 多选
【多选题】工程项目成本核算的指标体系中,通常采用( )指标反映施工成果。
【单选题】Matrix's first product is a memory chip—an easier design and manufacturing task than a full-blown microprocessor chip of the sort that provides the guts of a computer. ________________________________...
A.
But, while that solves one problem, it creates another. For making such a multistory chip is hard.
B.
But the real principal advantage of matrix's memory chip is cost. The 64 megabyte version, which can hold about two hours-worth of music, costs less than $10.
C.
For this obvious disadvantage, the multi-story chip is still under intensive research and experts say it still takes years before they are successfully marketed.
【判断题】整车上ON电,如果万用表数值在13.8~14V之间,判断为DC工作
【简答题】阅读下面短文,在空白处填入 1 个适当的单词或括号内单词的正确形式。 Nezha is the subject of the latest cartoon film, which 61 (official) opened in cinemas in China on July 26. Nezha has got wonderful reviews and is rated higher than ...