PLC与计算机进行通信时，要设置通信，选择PC/PPI cable项。（ ）
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STEP7-Micro/WIN32 V4.0 SP9编程软件窗口组件主要由哪几个部分组成，分别有什么功能？
_____ that we all went out, lying in the sun.
A. The weather so fine was
B. So fine was the weather
C. So the weather was fine
D. So was the fine weather
______ from the tenth floor when the policeman pointed his gun at him.
A. Jumped down the murderer
B. Down the murderer jumped
C. The murderer jumped down
Down jumped the murderer
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