问题 问答题 简答题

并网逆变器关机操作顺序?

答案

参考答案:

1、根据逆变器液晶面板停机提示,进行停机操作。(一般逆变器设置有紧急停机按钮,只有紧急境况下才可使用)

2、逆变器停机后,观察面板显示负荷为0,交流接触器跳开后。

3、断开直流输出断路器。

4、断开交流输入断路器。

5、有控制电源开关,应断开。

6、观察逆变器液晶面板断电,无显示。

完形填空

根据中文提示用适当短语的适当形式完成句子

小题1:让客人感到自在是妈妈的特长。

Mother ______________________ making people feel at home.

小题2:珍妮考了3次才最终通过了驾照考试。

Jenny ______________________ her driving test on the third attempt.

小题3:从教课书上得知美国内战是在1861年爆发的。

It is said in the textbook that the American Civil War ______________________in 1861.

小题4:既然已完成了工作,你就应该好好休息一下。

You ought to have a good rest _____________________ you have finished your work.

小题5:叔叔很幽默,跟他在一起我们过得很开心。

My uncle is a humorous man, so we often ________________________ him when we stay with him.

小题6:房价不停上涨,很多人宁愿租房子也不买。

As the prices of houses keep going up, many people prefer to rent houses ______________ buy houses.

小题7:不管发生什么事,我都会信守诺言,跟你讲真话。

No matter what happens I will __________________ and tell you the truth.

小题8:那些一天到晚忙于谋生的父母很少有机会跟自己的孩子玩

Parents who spend most of time ____________________have little chance to play with their children.

小题9:昨天在超市我偶遇一位老朋友。

Yesterday I met an old friend of mine in the supermarket___________________.

小题10:外面噪音太大,我无法专心学习。

The noise outside was so big that I couldn’t __________________ to my study.

小题11:缺乏耐心和缺少经验可以作为他创业失败的解释。

Lacking patience and work experience can _______________________ his failure in his business.

小题12:四处张望,她看见有个黑影在阴影处。

Glancing round, she __________________________ a dark figure in the shadows.

小题13:明天将轮到他清扫课室。

Tomorrow he is going to clean the classroom _______________________.

小题14:我们要竭尽全力来防止水源被污染。

We will do everything to ____________ water source __________ being polluted.

小题15:汽车的嘈杂声消失在远处。

The noise of the cars died away ____________________.

单项选择题