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>> 成人高等教育 / 汉语通论
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佳题速递：
PLC在一个工作周期中，输入采样和输出刷新的时间一般为秒级。 （ ） 可编程控制器应用 强迫油循环水冷却系统主要适用于额定容量为（ ）的变压器。电力工程基础 运用水平分析法可以更深入地说明销售费用的变动情况及其合理性。财务分析 剩余价值率和利润率相比通常是政治经济学(资) 在形成概念的最初阶段，对形象直观的事物或过程，通常是靠何种方法得出其共同特征的：中学物理教学论 It is obvious that television has both advantages and disadvantages. In the first place, television is not only a convenient source of pleasure, but also a quite cheap one. For a family of four, for example, it is more convenient as well as cheaper to sit comfortably at home, with so many interesting programs available, than to go out for something else. There is no transport to arrange. They do not have to pay for expensive seats at the theatre, or the like, only to discover, perhaps, that the show is disappointing. All they have to do is to turn a knob, and they can see plays and shows of every kind, not to mention the latest current events. Some people, however, maintain that this is just where the danger lies. Those who watch television need do noting. They are completely passive and have everything presented to them without any effort on their part. 大学英语1