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【判断题】
用一个常数 K 加到运价矩阵 C 的某列的所有元素上,则最优解不变。A.
正确
B.
错误
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反馈参考答案：
举一反三
【单选题】如果在应收款系统中生成的凭证已经在总账中记账，又需要对形成凭证的原始单据进行修改，则可以通过（）操作，然后对原始单据进行相应的修改。
A.
冲销凭证
B.
取消操作
C.
取消记账
D.
删除凭证
【单选题】With more traffic problems arising, more strict rules have been set, which makes it difficult for people to succeed __________the driving test
A.
to pass
B.
passing
C.
to have passed
D.
to be passed
【简答题】The farmers were more anxious for rain than the peoplein the city because they had more _____. A. at length B. at last C. atstake D. at ease
【单选题】With the housing price going up and up, even far beyond the public’s affordability, more and more people ______ the government take more strict measures over the second mortgage.
A.
advocate
B.
claim
C.
promote
D.
allocate
【单选题】如果在应收款系统中生成的凭证已经在总账中记账,又需要对形成凭证的原始单据进行修改,则可以通过__ __操作,然后对原始单据进行相应的修改。
A.
凭证
B.
操作
C.
记账
D.
凭证
【单选题】听力原文：W: With the convenience of bankcards, more and more people prefer bankcards to personal checks. M: I agree. People like bankcards because they offer greater safety and convenience than personal c...
A.
A merchant doesn't know the balance before completing a sale.
B.
No security system has yet been devised for personal checks.
C.
A personal check is secure at the check stand.
D.
The clerk can examine all the bankcards.
【单选题】如果在应收款系统中生成的凭证已经在总账中记账,又需要对形成凭证的原始单据进行修改,则可以通过( ),然后对原始单据进行相应的修改。
A.
冲销凭证
B.
取消操作
C.
取消记账
D.
删除凭证
【单选题】According to paragraph 2, why do group decisions tend to be more successful?
A.
When more people are involved, there are more ideas from which to choose.
B.
People are more accepting of decisions when they have been involved in them.
C.
Implementing ideas is easier with a large number of people to help.
D.
People like to be participants in decisions that are successful.
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