RTU具有信息采集、转换、处理模拟量、数字量、状态信号并向主站传送的功能。
参考答案:对
任务型阅读。
My name is Carl. I have a good friend . His name is Ding Ding . We live in the same dormitory.
He is polite when he meets teachers, he always says " hello " to them. And he likes smiling very much.
His smiling face makes us happy. He likes helping others, too, Look! There's an old woman
carrying a heavy box . He runs to her and says " Can I help you ? "
"No, thanks." the woman answers. "I can do it by myself. "
Why does she say that? Because older people in America don't think they need a lot of help.
1. Ding Ding comes from .
2. Carl with Ding Ding.
3. People like seeing Ding Ding's face.
4. The old woman is carrying a box.
5. The woman want Ding Ding to help her.
最恰当的处理是
A.确诊后即行人工破膜
B.人工破膜及静脉滴注缩宫素
C.期待疗法
D.尽快剖宫产术
E.卧床休息、吸氧