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【简答题】
若非齐次线性方程组 ( ) 的系数行列式不等于零,则它的解的情况是 .
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【单选题】This doubt had been in my mind for some time, but the research still went on some reasons. [ ]
A.
to
B.
about
C.
for
D.
in
【简答题】听力原文：(F) The big news this year without doubt has been the reallocation of resources within the company. Some departments now have much less to spend and have had to lose a considerable number of staf...
【单选题】This doubt had been in my mind for some time, but the research still went on____some reasons.A．to
A.
14．This doubt had been in my mind for some time, but the research still went on____some reasons. A．to
B.
about
C.
for
D.
In
【判断题】Jenny is required to attach the receipts for the main items to the back of the expenses claim form.
A.
正确
B.
错误
【简答题】关联词填空,注意:一题有两空的,两个答案之间用逗号连接,如:a,b 1. Great changes have taken place in that school. It is no longer _______ it was 20 years ago, _____it was poorly equipped. 2. The shopkeeper did not want to sell the...
【简答题】Guests may write their ________________________ on the back of the form.
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