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【判断题】
的道是要人们卸掉心灵的包袱A.
正确
B.
错误
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【简答题】Unit 4 Listening Task 2 Mr. Brown is talking with a clerk in a bank. Listen to the conversation and answer the following questions. 1. How much unused RMB does Mr. Brown have? He has _____________...
【单选题】How long will Mr. Brown be staying?
A.
About a year.
B.
About a month.
C.
At least a year.
D.
Less than a week.
【简答题】There are many cats in England. English people are very friendly to all their cats. Mary was a school teacher. She had a beautiful white cat, and she loved it very much. But a very sad thing happened ...
【简答题】Task 2 Mr. Brown is talking with a clerk in a bank. Listen to the conversation and answer the following questions. 1. How much unused RMB does Mr. Brown have? He has _____________ yuan .
【简答题】Mary was friendly to my sister because she wanted her to be her bridemaid .
【单选题】已知 , B 是 3 阶非零矩阵,且 AB=O ,则( ) (提示:当AB=O时,r(A)+r(B)小于或等于n(n为A的列数))
A.
a=1 时， B 的秩必为 1
B.
a=1 时， B 的秩必为 2
C.
a=-3 时， B 的秩必为 1
D.
a=-3 时， B 的秩必为 2
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