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【判断题】
如果运输问题单位运价表的某一行（或某一列）元素分别加上一个常数k，调运方案将不会发生变化。A.
正确
B.
错误
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【简答题】I hope you will let me know that you can come.
【判断题】The students should understand that you can't let your failures define you, you have to let your failures teach you, you have to let them show you what to do differently the next time. (1.0分)A. √ B. ╳
A.
正确
B.
错误
【单选题】－－－ Does he study very hard at school? －－－ Yes, he studies _____.A．very indeed hardB．hard very i
A.
49. --- Does he study very hard at school? --- Yes, he studies _____. A．very indeed hard
B.
hard very indeed
C.
very hard indeed
D.
indeed very hard
【简答题】当主机A向局域网内所有主机广播发送ARP请求时,ARP Request数据报中包含主机A的 ___ 和 ___。
【单选题】Some evidence threw doubt on ______ he had lent the money to the defender.
A.
if
B.
which
C.
that
D.
Whether
【单选题】He missed the train this morning ______ he got up late．
A.
or
B.
if
C.
but
D.
because
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