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教学设计是运用系统方法分析 和确定 ,建立解决教学问题的策略、试行解决方案、评价运行结果和对方案进行修改的过程。
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【简答题】A.Traveling in a car to the campus. B.No housework to do. C.Some of choosing a roommate. D.Arrange the furniture at will.
【简答题】听下面一段材料,回答第1至3题。 1. What are the speakers talking about? [     ] A. Buying a car. B. Choosing a gift. C. Using a computer. 2. What' s the relationship between the two speakers? [     ] A. Husband and ...
【单选题】Choosing a car is not unlike choosing a dress. You should not only read the price_____ but also consider the image it conveys.
A.
A brand
B.
label
C.
c. tag
D.
trademark
【简答题】一般 LED 的工作电流在 。而低电流 LED 的工作电流在 ,电流在 20mA 以上的为大功率型 LED。
【简答题】需要层次理论的主要内容是什么?
【简答题】Choosing a car is not unlike choosing a dress. You should not only read theprice __________but also consider the image it conveys.A. brand B. label C. tag D. trademark
【单选题】关于控制规律,下列说法正确的是()
A.
控制规律表达的是控制器的输出MV与偏差之间的函数关系
B.
若想得到纯比例控制规律,需要将TD和TI调为0
C.
控制器中只采用比例控制规律,在整个控制系统稳定后,会存在测量值和给定值不相等的情况,因此比例控制规律只能用在控制精度要求不高的场合
D.
微分作用是根据测量值的变化量采取控制作用,而不是根据测量值大小采取控制作用,因此有超前控制之称
【简答题】听下面一段材料,回答第1-3题。 1. What are the speakers talking about? A. Buying a car. B. Choosing a gift. C. Using a computer. 2. What does the speaker think of buying a car? A. Popular. B. Necessary. C. Expensiv...
【单选题】Choosing a car is not unlike choosing a dress. You should not only read the price _________ but also consider the imgae it conveys.
A.
brand
B.
label
C.
tag
D.
trademark
【简答题】Earhquakes occur witout warning; however, it is claimed that some animals can feel earthquakes _____ ____ occurrences because of their sensitive organs.
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