调节系统动态特性试验的目的是测取电负荷时转速飞升曲线,以准确评价过渡过程的品质。
参考答案:对
单词拼写。
1. Have you ever seen the movie _____ and the Beast (《美女与野兽》)?
2. The boy always wears a pair of sunglasses to make a _____ (神秘的) look.
3. Some advertising can be ____ (令人费解的) or _____ (令人误解的).
4. For instance, they can help you to _____ (比较) two different _____ (产品)
so that you can buy the one you really need.
5. Some advertisments tell the _____ (真相) and some don't.
_____I phoned the police, then I made a list of what had been stolen, and then I made myself a cup of tea.
A.At first
B.First
C.In the first place
D.At the start