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【简答题】
对任意n阶矩阵A，必有n阶矩阵B和C，使A=B+C，且B=B'，C=-C'．
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反馈参考答案：
举一反三
【单选题】Nov. Mr. Black, I shall be visiting Montreal on Thursday, Dec. 3rd., and would like to take this opportunity to pay you a visit with a view to discuss the impending arrival of the delegation of our co...
A.
To inform. Mr. Black of Jane Gates' arrival on Thursday, Dec. 3rd
B.
To discuss the impending arrival of the delegation of Ms. Gates' company
C.
To inform. Mr. Black that Jane Gates would visit Montreal and want to discuss the delegation issue with him
D.
To give a suggestion to Mr. Black
【单选题】They _____________ Mr Brown's office last Thursday.
A.
called at
B.
stop over
C.
call
D.
called on
【简答题】On Thursday Mr Lessing is flying from London to ____________.
【单选题】Mr. Li told us we were going to have a math exam ______ Thursday morning. [ ]
A.
at
B.
on
C.
for
D.
in
【单选题】Mr.Hunter will be available next Tuesday and Thursday
A.
亨特先生下周二和周四开会
B.
亨特先生下周二和周四有时间
C.
亨特先生下周二和周四出差
D.
亨特先生下周二和周四回公司上班
【多选题】下列关于会计账簿的说法,正确的有( )。
A.
在会计核算中具有重要的意义
B.
可以全面反映会计主体在一定时期内所发生的各项资金运动，储存所需要的各项会计信息
C.
账簿由不同的相互关联的账户构成
D.
能够检查和校正会计信息
【单选题】When will Mr. Trevor pay?
A.
Next Thursday.
B.
This Thursday.
C.
Over the weekend.
D.
Tonight.
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