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【单选题】
PLC控制系统设计的步骤描述错误的是（）。A.
正确选择PLC对于保证控制系统的技术和经济性能指标起着重要的作用
B.
深入了解控制对象及控制要求是PLC控制系统设计的基础
C.
PLC进行程序调试时直接进行现场调试即可
D.
选择正确合理的控制方案，并编制程序
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反馈参考答案：
举一反三
【简答题】当今的冲突观认为，一个组织应保持适度的冲突，如形成批评与自我批评、努力进取的风气，组织就会有旺盛的活力。 判断对错
【单选题】What can be inferred about Peter Anderson's experience with Pro Plumbing?
A.
It was generally positive.
B.
It was generally unsatisfactory.
C.
It was more expensive than he had expected.
D.
It was more time consuming than he had expected.
【单选题】听力原文： In Wednesday night's transmission, for example, the pro-Aided radio blasted the United States in particular for pursuing what it is described as neocolonial policies in Somalia under the guise o...
A.
Wednesday morning.
B.
Thursday morning.
C.
Wednesday night.
D.
Thursday night.
【单选题】--- Good morning, Pro. Lee. Could you tell me how I did on Friday’s test? --- Well, let’s see… _____ This is your best result ever!
A.
What a pity!
B.
What a mess!
C.
No way!
D.
Congratulations!
【单选题】工程量清单计价活动应遵循( )的原则，应符合国家及地区有关法律、法规、标准、规范及规范性文件的规定。
A.
公开、公平、公正
B.
客观、公开、公正
C.
客观、公平、公正
D.
客观、公平、公开
【单选题】Japan's official position shows that it _________ Washington's plan to develop the NMD project.
A.
rejects
B.
is cautious to
C.
concerns
D.
understands
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