【判断题】对称三相电源是指三个幅值相同、频率相同和相位互差120的电动势电源。
【单选题】Now the computers are ________ more and more people all over the world.
【简答题】对称三相电动势是指电动势的幅值 、频率 、相位互差 的三相电动势,称为对称三相电动势。
【单选题】What does the story want to tell us? 查看材料
A.
Computers are very important in our daily life.
B.
Everyone can make a lot of money with only 10.
C.
The HR manager didn't find the ability of the man.
D.
Nothing in the world is impossible if we work hard.
【简答题】对称三相电源是指三个 幅值 相同、 频率 相同和 相位互差 120 o 的电动势电源。
【单选题】Computers are taking over some of the tasks once finished by our own brains,but they are not replacing us.
A.
计算机正在接替本来由人脑完成的部分工作,但是他们并没有取代我们。
B.
计算机正在做一些只有我们的大脑才能做的事情,然而他们没有取代我们。
C.
计算机占领了我们的某些职位,完成了我们的任务,但是我们的大脑不能因此空闲下来。
【单选题】在药品养护过程中,应按照质量标准“贮藏”项下规定的条件分类储存,对于药品贮存与保管的名词术语,下列表述错误的是
A.
遮光是指用不透光的容器包装,如棕色容器或黑纸包裹的无色透明、半透明容器
C.
密封是指将容器密封,以防止风化、吸潮、挥发或异物进入
【简答题】We are in the computer age today. The computers are 1)____ all kinds of wonders now. They are very useful in automatic control and 2)______ . At the same time, computers are finding their way into the...