DatachiefC20系统的上层结构包括() A.分布式处理单元DPU B.现场工

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问题:

DatachiefC20系统的上层结构包括()

A.分布式处理单元DPU

B.现场工作站LOS

C.延伸报警装置WCU.WBU

D.以太网

考点:自动控制原理自动控制原理题库
题型:单项选择题

能正确表示下列反应的离子方程式为(  )

A.碳酸氢钠溶液中滴入氢氧化钙溶液:HCO3-+OH-=CO32-+H2O

B.二氧化硫通入次氯酸钠溶液:SO2+ClO-+2OH-=SO42-+Cl-+H2O

C.硫化钡加入稀硫酸:BaS+2H+=H2S↑+Ba2+

D.新制的氧化铝可溶于氢氧化钠溶液:Al2O3+2OH-=2AlO2-+H2O

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铁岭到哈尔滨的公路长是450千米,一辆汽车2小时行180千米.照这样的速度,还要几小时才能到达哈尔滨?(先用算术方法解,再用比例知识解)

题型:单项选择题

DPT(白百破三联疫苗)

题型:单项选择题

完成句子

1. Students ________________( 觉得最容易的)to learn a new concept by hearing a teacher explain

it are learning through learning. (find)

2. Not ________________( 让你知道这个计划) ahead of time is just to keep it secret. (let)

3. After graduating from college, I took some time off to go travelling, ________________

( 其结果是)a wise decision.(turn)

答案:which turned out (to be)

4. With ________________( 房价上升)all the time, complaints can be heard everywhere.(go)

5. ________________( 吃药)three times a day, and then you will find the pain will go away by and

by. (take)

6. The performance was about to begin when the news came ________________( 暴风即将来临).

(way)

7. ________________( 无论哪个队获胜)on Saturday will go through to the national championships.

(whichever)

8. We were lucky ________________( 没有受伤)in the train accident.(injure)

9. The doctor gave an order in the hospital that smoking ________________( 禁止). (permit)

10. Human beings are different from animals in ________________( 他们能够使用)language as a

tool to communicate. (use)

题型:单项选择题

蘅芜君兰言解疑语 潇湘子雅谑补馀香

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