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【多选题】
按给定值的特点进行分类,控制系统可以分为A.
定值控制系统
B.
随动控制系统
C.
比例控制系统
D.
程序控制系统
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反馈参考答案：
举一反三
【单选题】If you want to keep fit, you should _______ [ ]
A.
eat junk food
B.
learn a foreign language
C.
find a job
D.
eat healthier food
【单选题】– You should walk or run daily if you want to keep fit. – ______.
A.
Yes, that's enough
B.
Thanks for your advice
C.
I like watching TV
D.
Well, that's OK
【简答题】设 为5阶方阵, 是其伴随矩阵,且 ,则 _______
【多选题】反映本量利关系的基本公式包括( )
A.
利润=销售收入-总成本
B.
利润=销售收入-变动成本-固定成本
C.
利润=单价X销售量-单位变动成本X销售量-固定成本
D.
利润=（单价-单位变动成本）X销售量-固定成本
【单选题】----How should I do the experiment next? ---- Do as you .
A.
see fit
B.
look fit
C.
fit for
D.
feel fit
【多选题】反映本量利关系的基本公式包括()
A.
利润=销售收入-总成本
B.
利润=销售收入-变动成本-固定成本
C.
利润=单价×销售量-单位变动成本× 销售量-固定成本
D.
利润=(单价-单位变动成本)×销售量-固定成本
【单选题】According to the passage,what should you do if your interview convinces you that the company is not fit for you?
A.
Give up the interview at once
B.
Continue to make efforts to get the offer
C.
Turn down the job at the end of the interviewC
D.
Ask the interviewer to find a fit one for you.
【单选题】In order to obtain the needed information, you should write simply, clearly, and con cisely ______ the reader wants to know.
A.
what
B.
that
C.
so that
D.
which
【简答题】You are not fit, and you should change your (the way you live).
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