S7 200系列PLC的数字量输入/输出模块物理点的分配是按 点来分配地址的。

S7 200系列PLC的数字量输入/输出模块物理点的分配是按 点来分配地址的。A.1B.2C.7D.8

查看答案

I have only one pen and I am going to buy _____. (

I have only one pen and I am going to buy _____. ( )(本题3.5分) A、 the second B、 o

查看答案

17. ______ from what you say, he has done his best

17. ______ from what you say, he has done his best.(本题3.5分) A、 To judge B、 Judge

查看答案