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【单选题】
若LP最优解不唯一，则在最优单纯形表上（ ）A.
变量的检验数必有为零
B.
变量的检验数不必有为零者
C.
/
D.
/
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反馈参考答案：
举一反三
【单选题】We can infer that among the four synonyms listed below, ______ is the best replacement for the word 'proceed' as used in Paragraph 3.
A.
advance
B.
carry on
C.
keep
D.
work
【单选题】由 4个JK触发器组成的计数可进行___。 ( ) 1 八进制计数 ; ‚ 2 九进制计数 . 3 十二进制计数 4十六进制计数5十八进制计数6二十四进制计数
A.
①⑤⑥
B.
③⑤
C.
②③④
D.
②④⑥
【单选题】Which of the motors for the devices listed below is fitted with an instantaneous overload relay?
A.
Fan
B.
Pump
C.
Winch
D.
Machine tool
【简答题】Kindly quote us your lowest prices for the goods listed below.
【单选题】According to the passage, all the damage listed below could be done by a hacker EXCEPT ______.
A.
entering into computers illegally
B.
creating many electronic-age terms
C.
removing computer systems
D.
going through computer systems
【简答题】试用两片CT74LS293计数器设计一个二十四进制计数器。
【简答题】用74LS161来构成一个二十四进制计数器。
【多选题】The main disadvantages of corporations are listed below：
A.
Double Taxation
B.
High Organizing
C.
Lack Of Secrecy
D.
Unlimited Liability
【简答题】试用两片74LS293型计数器接成二十四进制计数器。
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