当用上位机监控PLC时,务必要把PLC的编程软件关闭,因为这两个软件都是访问串口。
A. 对
B. 错
Read the bid sheet from a construction company. Then, mark the following statements as true or false.Ceramic tiles are less decorative than porcelain tiles. _________
A. 对
B. 错
Read the bid sheet from a construction company. Then, mark the following statements as true or false.Stainless steel costs more than standard steel. _________
A. 对
B. 错
对思维与存在的同一性问题的不同回答区分()
A. 唯物主义和唯心主义
B. 辩证法和形而上学
C. 可知论和不可知论
D. 反映论和先验论