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【单选题】
关于控制系统，下列说法正确的是（）A.
简单的控制系统由两部分组成，即被控对象和控制装置
B.
开环控制系统结构和原理比较简单，信息传输仅有一条路径，其最大优点是控制精度高
C.
闭环控制系统的结构较为复杂，信息流经两条路径，其有较强的抗干扰性能，但控制精度较低
D.
在水箱水位控制系统中，人工控制优于自动控制
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举一反三
【单选题】Name the one which is not a prerequisit subject for Pharmacy School application?
A.
Physics
B.
Biology
C.
General Chemistry
D.
Geology
【单选题】When the demand for a good increases and the supply of the good remains unchanged, consumer surplus
A.
decreases.
B.
is unchanged.
C.
increases.
D.
may increase, decrease, or remain unchanged.
【单选题】The law of supply refers to the fact that, all other things remaining the same, when the price of a good rises,
A.
the supply curve shifts leftward.
B.
the supply curve shifts rightward.
C.
there is a movement up along the supply curve to a larger quantity supplied.
D.
there is a movement down along the supply curve to a smaller quantity supplied.
【单选题】According to the law of supply, when the price of a good increases we would predict that:
A.
less will be produced.
B.
less will be consumed.
C.
more will be produced.
D.
more will be consumed.
【单选题】彭齐亚斯和威尔逊等人观测到辐射温度是B、7K的( ),使我们能够获得很久以前宇宙创生时期的信息。
A.
太阳系辐射
B.
银河系辐射
C.
黑洞辐射
D.
宇宙微波背景辐射
【单选题】The weight of a newborn has to do with the supply of oxygen even when he was still in his mother’s womb．
A.
Right
B.
Wrong
C.
Not mentioned
【简答题】你现在就是法国动画先驱,艾米 . 雷偌。 请写一则50字左右的广告词,描述你今晚将在巴黎著名的葛莱凡蜡像馆向观众放映“前所未见”的影像,请大家前来观看。 提示:根据课程介绍的内容,以及课后大家查找的相关资料,尽情发挥想象力,用所能想到的词汇描述当时的动画特征,吸引人们前来观看。
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