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【单选题】
从系统结构和功能上讲,条码识读系统由( )等部分组成。A.
条码扫描和译码
B.
光学系统及探测
C.
信号放大、滤波、波形整形
D.
扫描系统、信号整形、译码
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【简答题】工业机器人的系统主要由 、 和 三个基本部分组成。
【简答题】对普通车床进行数控化改造,一般有哪2条思路或途径?
【单选题】About the novel Sister Carrie , which of the following statements is right?
A.
It is about a Southern aristocratic woman, who refuses to come to terms with the present.
B.
It tells a story of a country girl, who strives to gain her material rise in big cities but soon gets tired of her success.
C.
It is about a young vain girl, who indulges herself in grand parties and luxurious trips but soon becomes penniless.
D.
The story is about a young sailor, who struggles to reach the upper society but soon gets disillusioned.
【简答题】At the ending of the novel, Carrie achieved success to be an ___________ and earned more money in New York.
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