问题
单项选择题
（）即测量值，由测量元件测得的过程变量的数值。
A.PLC
B.DCS
C.SP
D.PV
答案
参考答案：D
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（）即测量值，由测量元件测得的过程变量的数值。
A.PLC
B.DCS
C.SP
D.PV
参考答案：D
| 选择所给的词完成短文，必要时作相应的变化。 | |
Olympic Game, I, ___2___ 18-year-old university student , is going to ___3___ a guide for ___4___ foreign athletes, news ___5___ and tourists. I'm going to tell them many stories about China, a nation of 5000 years ___6___ history. I am ___7___ going to tell them in English __8__ Beijing, a city of 3000 years of history. So I am going to study __9__ from now on. I'm going to speak and write English as __10___ as I can. Do you want to have a dream like me? |