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【单选题】
下面关于可编程控制器(Programmable Logic Controller,简称 PLC)说法错误的是
A.
PLC 也属于工业控制计算机的一种
B.
PLC 主要由中央处理单元、 存储器、 输入接口、输出接口、通信接口等部分组成
C.
PLC 主要使用梯形图编程,但编程方法比较复杂,一般电气技术人员较难掌握
D.
PLC 是微机技术和继电器常规控制概念相结合的产物,是一种以微处理器为核心的用于控制的特殊计算机
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参考答案:
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【简答题】侧线器官 lateral line organ
【单选题】When the author says that 'an oracle suffered from dyspepsia which he ascribed to some fried item on the menu' he is being __________.
A.
grateful
B.
factual
C.
sarcastic
D.
humorous
【判断题】Chandler suffered from a trivial wrist sprain and soon recovered.
A.
正确
B.
错误
【单选题】Why did chandler say “ that fake-out thing is mean ” ?
A.
Because Joey felt sorry to Chandler.
B.
Chandler thought Joey was mean.
C.
Because Chandler worried about Joey ’ s audition.
D.
Because Joey failed in the audition.
【简答题】A.Five daughters fought over inheritance from their father. B.A family suffered from national prejudice. C.Pride was in the way of love in the early 19th century. D.A father and a mother tried to get ...
【单选题】The lateral border of the of auscultation is
A.
the tzius
B.
the superior border of latissimus dorsi
C.
the lateral border of the scapula
D.
the medial border of the scapula
【简答题】A.back B.side C.front D.lateral
【单选题】When the author says that an 'oracle' suffered from dyspepsia which he ascribed to some fried item on the menu, he is being ______.
A.
bitter
B.
factual
C.
humorous
D.
sarcastic
【单选题】ship chandler()
A.
船舶供应商
B.
船长
C.
大副
D.
代理
【单选题】The president Johnson was defeated by the Democrats in 1965 because______.
A.
he suffered from a serious scandal in Columbia
B.
he was in the sixth year as president
C.
he was no longer able to control his party
D.
he came to the end of the second term as president
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