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【判断题】
单纯形法计算中,如不按最小比列原则选取换出变量,则在下一个至少有一个基变量的值为负。A.
正确
B.
错误
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反馈参考答案：
举一反三
【简答题】铁罐瞧不起陶罐是因为什么?从哪里可以看出来?
【单选题】—Excuse me. Are you Daniel? —__________ [ ]
A.
Yes, I'm.
B.
No, I'm not.
C.
Yes, I do.
D.
No, I don't.
【简答题】请大家把大广赛选题填到表里,按班级填写,跨班级组队的,按主要成员所在班级填。 大广赛选题汇总.docx
【单选题】Customer: ______. Salesperson: I'm awfully sorry. I'll change it right away.
A.
Excuse me. I'd like to change this dish.
B.
Look, there is a hair on my steak.
C.
Miss, I want my refund for this.
D.
This shirt I bought last Saturday has a bole on a sleeve.
【单选题】听力原文：W: Excuse me. I'm looking for the textbooks for French course. M: I'm afraid they are out of stock. You'll have to order them, will take the publisher four days to fly them to us. Q: Where did th...
A.
In an airplane company office.
B.
In French teacher's office.
C.
In a publisher's office.
D.
In a university store.
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