题目

看看我这几个冠词用对了吗,a ,an ,the
it shows a series of negative consequences,such asimproper handling of electrical energy from an imbalanced motor load,harmonicpollution of the net side,a low power factor and so on.

提问时间：2021-02-18

答案

对了,an是在a e i o u开头用.如 an apple ,如果开头的字母音标不是发元音的话,开头就用a,如a university .the是特指.例如 The bird is singing.