工控机的软件包括: ____ 、_____ 和 应用软件 。
系统论、信息论、控制论是机电一体化技术的理论基础,是机电一体化技术的方法论。
You can _____ some bottles of wine, or some chocolates, or a bunch of flowers.
A campus emergency ______ occur at any time of the day or night, weekend, or holiday, with little or no warning.
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