【简答题】如图 40 所示的电路在 t=0 时开关闭合,则开关闭合后, 的稳态值为 _____________V 。
【单选题】如何将CAD的dwg类型文件在Revit里面打开?
B.
可以先将dwg的文件另存为rvt文件,再用Revit打开即可
【判断题】依法必须进行招标的项目,招标人不可自行办理招标事宜。
【简答题】如图9-58所示电路,开关S位于1,电路已达稳定。t=0时,S从位置1转到位置2,在40ms时,S又接至1。求t≥0时,电容器C 1 上的电压 (t),并绘出其波形曲线。
【判断题】A person who spends more time at work doesn't always accomplish more.
【判断题】()5. A Wikipediholic is a person who spends too much time surfing the Web.
【单选题】A person who spends time looking for work is:
A.
engaged in job search.
B.
usually counted as a marginally attached worker.
C.
counted as out of the labor force.
D.
usually counted as a discouraged worker.