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【单选题】
图解法通常用于求解有( )个变量的线性规划问题A.
1
B.
2
C.
4
D.
5
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反馈参考答案：
举一反三
【单选题】The person who is _______ of the factory _______ ill since last week.
A.
in charge; has been
B.
in the charge; fallen
C.
taking charge; was
D.
in charge; fell
【单选题】You should be careful of such a person flatters you in your presence and speaks ill of you in behind.
A.
who
B.
that
C.
as
D.
which
【单选题】The person ___ of the factory has ___ ill since last week.
A.
in charge, been
B.
in the charge, fallen
C.
taking charge, fallen
D.
in charge, fell
【单选题】The person who is _______ of the factory _______ ill since last week.
A.
in charge; has been
B.
in the charge; has fallen
C.
taking charge; was
D.
in charge; fell
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