题目内容
（请给出正确答案）
提问人：网友hhz2020
发布时间：2022-01-07
[判断题]
S7-200SmartSR40AC/DC/RLY表示PLC的供电电源为交流电。（)
参考答案
A、40个IO点
B、40个输入点
C、40个输出点
D、以上都不对
网友您好，请在下方输入框内输入要搜索的题目：
搜题
题目内容
（请给出正确答案）
参考答案
更多“S7-200SmartSR40AC/DC/RLY表示PLC的供电电源为交流电。（)”相关的问题
第6题
完形填空????New comers to the United States are of...
| 完形填空 | ||||
| New comers to the United States are often1by the schools. American schools2so different from schools they know in3of the world. American education is based on the4children5learn to think6. The school should be the7they learn to do this.8, children learn the "three R's" (Reading, Writing and Arithmetic), history and government(often called Social Studies) and many other 9. They also learn10be independent(独立的), how to make their own judgment(判断), and how to develop their own11and interests. The American teacher does not12children in her class to sit 13folded quietly and to say14. She wants them to listen attentively, to ask questions. She knows that15children learn from books is16. She also knows that, it is necessary for them to know how to use this17their18development. During Open School Week, parents have a19see how American education20. | ||||
|
